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11 Steps Simplified: How To Clean a Betta Fish Tank

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How To Clean a Betta Tank

We can all agree Betta fish are often sold as easy-to-care-for, low-maintenance pets. And while they are generally hardy fish, they still produce waste like any other fish and their tanks will eventually need to be cleaned.

In this guide, you’ll learn how to clean a Betta fish tank and 11 simple tasks like keeping the glass clean and other things you can do in less than 30 minutes each week and every month to ensure your water quality remains cleaner for your animal. When you’re done, you’ll have crystal clear water and a very happy fish.

At the end of the post, we’ve included a video showing each of the 11 steps.

We also decided to take a closer look at some equipment used for cleaning a Betta fish tank to help you find the best tools out there. Of the all the equipment we’ve seen, we recommend using these three tools to clean your Betta’s tank:

  1. Best Betta Fish Tank Cleaner: Seachem Stability
  2. Best Siphon For Changing Betta Fish Water: Penn Plax Gravel Vac, 9″
  3. Best Tool For Cleaning A Betta Fish Bowl: Marina Betta Waste Remover

Further Reading: If you’re setting up a new tank for your Betta make sure you know what the ideal Betta Fish tank size is and give your little buddy some room to swim.

Let’s start:


Nitrogen Cycle in a Betta Fish Tank [Infographic]

First, let’s look at this infographic below that describes the waste cycle of your Betta fish and how that tank just keeps getting dirty:

The waste that your Betta generates decomposes and turns into ammonia, which is toxic to your fish. Cleaning your Betta’s tank regularly will help eliminate harmful waste, and also clear ammonia and other toxins out of the water. And the cleaning process is actually quite easy.

Aquarium Maintenance Checklist [Free Guide]

It can even be fun to keep your Betta’s home looking neat and tidy!

Now before we begin you’ll need a few things to clean a tank the right way.

Some Tools You Will Need

TopPenn Plax GV9 Aquarium Gravel Vac, 9TopPenn Plax GV9 Aquarium Gravel Vac, 9"PrimeEligibleBuy On Amazon
SunGrow Betta Net, 5x4 Inches with 11 Inches Handle, Anti-Stress, Extra Soft Nylon Net, Easy Routine Tank Maintenance, Random ColorTopSunGrow Betta Net, 5x4 Inches with 11 Inches Handle, Anti-Stress, Extra Soft Nylon Net, Easy Routine Tank Maintenance, Random ColorPrimeEligibleBuy On Amazon
Marina Betta Waste Remover for AquariumTopMarina Betta Waste Remover for AquariumPrimeEligibleBuy On Amazon
API HAND HELD ALGAE PAD For Glass Aquariums 1-Count ContainerTopAPI HAND HELD ALGAE PAD For Glass Aquariums 1-Count ContainerPrimeEligibleBuy On Amazon
AquaticHI 5 in 1 Aquarium/Fish Tank Cleaning Kit/Tool, Algae Scraper, Fish Net, Sponge, Plant Fork, Gravel Rake, Length 19 inches (Non-Extendable)TopAquaticHI 5 in 1 Aquarium/Fish Tank Cleaning Kit/Tool, Algae Scraper, Fish Net, Sponge, Plant Fork, Gravel Rake, Length 19 inches (Non-Extendable)PrimeEligibleBuy On Amazon
Product Image5 Gallon White Bucket & Lid - Durable 90 Mil All Purpose Pail - Food Grade - BPA Free Plastic (5 Gal. w/Lids - 6pk)PrimeBuy On Amazon
Product ImageSeachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 mlPrimeEligibleBuy On Amazon

How often does a betta fish tank need to be cleaned?

How often you need to clean your Betta’s tank depends on the tank size. Smaller tanks accumulate toxic levels of waste more quickly and need much more frequent cleanings and water changes. You may have to change out 30-50% of the water every few days and clean the tank once or twice a week.

Larger tanks with filters need less frequent water changes and even fewer cleanings. It’s a good idea to change out 10-15% of the water every week or two, and your tank can go several weeks without a full cleaning.

The thought of fully cleaning your Betta’s tank may seem intimidating at first, but it’s really quite simple. Here are the supplies you’ll need:

  • Freshwater
  • Containers for fish, water, and gravel/decorations
  • Soft brush or sponge
  • Sink

Depending on the size of your aquarium, how much food you feed each day and whether you keep live plants. Your aquarium might require a weekly tank cleaning as well as a water change using a gravel vacuum to suck out any build-up of waste in the rocks and gravel. Doing this properly will also replace at least 25-30 percent of the gallons in your tank at the same time.

Let’s start with step #1.

1. Prepare Your Water Ahead of Time

When you clean your Betta tank, you’ll want to perform some sort of water change. Whether you’re changing 10%, 20% or 50%, you should have your water already prepared before you start the cleaning process.

Like all fish, Bettas can’t survive in unconditioned tap water. If you’re using tap water, put the amount that you need in some sort of container and use a water conditioner to neutralize chlorine and other chemicals harmful to your fish.

You can also leave tap water out for 24-48 hours and the chemicals will evaporate naturally.

No matter what kind of water you’re using, you’ll want to bring it as close to your tank temperature as possible, either by letting it sit out for a few hours so it can get to room temperature or by using a heater.

Remember: When cleaning the tank to be safe always wash your hands with warm or hot water. This will help by removing and kill harmful bacteria and chemicals left on your hand or arms keeping your pet healthy.

2. Remove Betta Fish From Tank

Before cleaning, you’ll want to remove your Betta fish from the tank and put him somewhere calm and safe.

Fill a bowl or cup with tank water, and use a small fishnet or sterile container to gently scoop your fish out of his tank. Put him in the tank water you’ve set aside and he’ll have a place to swim around while you clean his living space.

Make sure you place a cover on top of this container. Betta fish are great jumpers.

3. Remove Decorations

Next, start taking all the decorations, accessories, plants and hiding places out of the tank. Taking these out will make it easier to clean the rest of the tank, and many of these items will need to be cleaned themselves.

Set aside everything in a large bowl to keep them together and to make cleaning easier.

4. Remove Tank Water to Save

Using a cup or bowl, scoop out a portion of the tank water and set it aside. If you’re doing a 50% water change, set aside half the water in the tank. If you’re doing a 10% water change, set aside 90% of the water in the tank. You’ll be adding this back in when you’re done the cleaning.

It can be really bad for your Betta to perform a complete water change, so you should always keep some original tank water to add back.

Your tank water has built up beneficial bacteria over time and it’s the environment that your Betta is used to. A sudden, drastic change to that environment could send him into shock.

5. Pour Out Remaining Water

Once you’ve scooped out the water you’re going to save, the rest of it can be dumped. Slowly pour the water out, making sure that your gravel doesn’t fall out.

You can also pour the water over a sieve or strainer to catch anything that falls out while you’re dumping it. Finally, pour your gravel into the bowl holding your tank decorations.

6. Clean Decorations

Run warm water over the decorations and accessories from your tank. Use a soft scrubber or brush to scrub off any slime and dirt stuck to the surface.

Do not use soap on the decorations or anything else in your tank. Even if you rinse it off well, soap residue can still remain and harm your fish.

Once you have finished rinsing your decorations, set them aside on a clean paper towel.

7. Clean Gravel

A lot of the waste and debris in your Betta tank accumulate in the gravel, so this can be the dirtiest part of your tank.

Run warm water over the gravel while gradually rubbing your hands through it to loosen slime and dirt. Once you have given the gravel a good rinse, drain the dirty water from the bowl. You can also place the gravel in a sieve or strainer so that water drains while you rinse it.

Repeat as many times as necessary until your gravel is completely clean.

8. Clean and Scrub Tank

The next thing to clean is the tank itself. Put the tank in your sink and run warm water into it. Scrub the bottom and sides of the tank with a soft brush to loosen any accumulated dirt, algae and slime.

Make sure you give the corners a good scrub.

Again, do not use any soap on your Betta tank. Once you’ve scrubbed everything, dump out the water and give the tank a final rinse.

9. Put Gravel and Decorations Back in Tank

Now that you’ve cleaned your tank, gravel, and decorations, you’re ready to put everything back together.

First, pour the gravel back into the bottom of the tank and arrange it so that it’s evenly spread out.

Next put in your decorations and accessories and arrange them how you want. For some really cool setup ideas.

Read: 19 Cool Betta Fish Tank Ideas That Will Inspire You

Finally, reattach any heaters, filters, thermometers and anything else that you removed before cleaning.

10. Refill Tank with Old and New Water

Slowly pour the old tank water you set aside back into the tank so you don’t disturb your gravel and decorations. Then, fill up the rest of the tank with the freshwater that you prepared earlier.

Give everything a stir to mix the water together, reposition any decorations that may have fallen over, and test your temperature and pH to make sure it’s ready for your fish. You’ll want the pH and temperature to be close to what your fish is used to.

11. Put Your Betta Fish Back In

Now that you’ve got everything clean and put back where they belong, it’s time to reintroduce your Betta fish to his home.

To do this, take the container that he’s in and place it in the tank. Slowly tilt the container until your Betta is able to swim out on his own.

Be careful when you’re doing this so he doesn’t damage his fins. Your Betta should be happily swimming around his newly cleaned tank.

How To Clean A Betta Fish Tank: Final Thoughts.

Cleaning your Betta tank regularly is vital to keeping your fish happy and healthy. The 11 simple steps above go over the basics of how to clean a Betta fish tank. As you can see, it’s a simple process that doesn’t need to be intimidating or a lot of work and it is extremely important to regularly clean any type of pet habitat.

Check out the video below for a walkthrough of this simple process:

This process works great for smaller tanks and tanks without a lot of complex aquascaping. If you have a larger or more complicated tank, it may not be feasible to completely empty everything out. But you also may not need to.

Installing a good filter and performing regular 10-15% water changes with a siphon will go a long way towards keeping your tank clean. Siphoning water out from the bottom will clean out much of the collected debris in the gravel, and your filter will capture anything floating around in the water.

No matter what type of tank you have, regular water changes and cleaning will keep your Betta happy and your tank looking great.

How do you clean betta fish water?

    1. Prepare Your Water Ahead of Time
    2. Remove Betta Fish From Tank
    3. Remove Decorations
    4. Remove Tank Water to Save
    5. Pour Out Remaining Water
    6. Clean Decorations
    7. Clean Gravel
    8. Clean and Scrub Tank
    9. Put Gravel and Decorations Back in Tank
    10. Refill Tank with Old and New Water
    11. Put Your Betta Fish Back In

Can you use tap water for a betta fish?

Yes, however, when you fill your new Betta tank or refill during a water change be sure to use a water de-chlorinator product like Seachem Prime.

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11 Steps Simplified How To Clean a Betta Fish Tank


How to clean a betta fish tank

Cleaning a betta fish aquarium

Betta fish might be small, but they still require a sizable amount of care. If you’re going to keep this type of fish, you must learn how to clean a betta fish tank. 

Even with a quality aquarium filter, betta tanks can become overwhelmed with nitrates and other toxins if you don’t clean them and partially change their water regularly, which can ultimately be fatal. 

Keep reading to learn all the steps involved in cleaning a betta fish tank, plus some other helpful information to make the process go more smoothly. 

How often should you clean a betta fish tank? 

Tetra ColorFusion Aquarium 20 Gallon Fish Tank Kit

This depends on the size of your tank and the setup. You should never keep a betta fish in a tank any smaller than 5 gallons, but larger is better. Something between 15-20 gallons, such as the Tetra ColorFusion Aquarium, is ideal for a betta fish and a handful of suitable tankmates. The main benefit of a larger tank is that it provides a more enriching environment for your fish, but it comes with the added bonus of less regular cleaning. You need to clean a 5-gallon tank weekly, while a larger 15- or 20-gallon tank only needs cleaning once or twice a month.

Should you remove your fish from the tank while cleaning it?

Penn Plax Aquarium Fish Net

Ideally, you should keep your betta fish in the aquarium while you clean it because removing them can stress them — only remove them if you’re changing 80% or more of the water in their tank. In this case, carefully remove them with an aquarium net and place them in a bowl or large mug with plenty of water from their aquarium, making sure to cover it with something breathable.

Should you clean the filter at the same time as the aquarium? 

Tetra Whisper IQ Power Filter

Your betta tank needs an aquarium filter, such as the Tetra Whisper IQ Power Filter, but you shouldn’t clean it or change the media at the same time as you clean your tank and change the water. Filters are full of beneficial bacteria colonies that help create a healthy tank ecosystem, so changing them at the same time as the water can wreak havoc. 

Preparing to clean your betta tank

Wash your hands and put on gloves 

Before you get started cleaning your betta tank, wash your hands and put on a pair of disposable gloves. This protects you from bacteria in the tank and the tank from any bacteria or germs on your hands.

Prepare fresh water 

Tap water is full of chlorine and other substances that can be toxic to fish, so you need to prepare the clean water you’re going to put in your aquarium ahead of time. Fill a clean bucket with as much water as you need and add a commercial aquarium water conditioner according to the package directions. Alternatively, you can simply leave the water uncovered for 24-48 hours, which is long enough for the unwanted substances to disperse.

Turn everything off 

Your betta fish tank should have a heater and filter. Turn these off before you start cleaning, along with any other electrical items, such as lights and bubblers. 

Steps to clean a betta fish tank

Remove algae 

Use an algae scraper to remove any algae you see growing inside the tank. There are different types of algae scrapers for both glass and acrylic tanks, so choose accordingly to avoid scratching or damaging the aquarium. 

Clean gravel and siphon water

Use a gravel vacuum or gravel siphon to clean the gravel substrate of your betta fish aquarium. Dropped food and fish waste can settle in the substrate and breed bacteria, so it’s important you clean it. Gravel siphons clean gravel and siphons off the water at the same time. You’re doing two jobs at once — cleaning the substrate and removing the water that you’ll replace with your clean prepared water. In a betta tank of 10-20 gallons, you should aim to remove 10-20% of the volume of water in the tank. In smaller 5-gallon tanks, you may need to remove more like 30-40% since more waste builds up in a smaller area.

Remove and clean tank ornaments

You don’t need to clean ornaments every time you clean your betta fish tank, but look out for algae buildup and clean them when necessary. Remove the ornaments from the tank slowly and carefully so you don’t stress your fish and clean each one with hot water and a clean toothbrush. Avoid using soap or cleaning products as these can be toxic to fish. 

Refill the tank

Slowly refill the tank with the water you prepared earlier. You should have left it out long enough for the water to reach room temperature, though if you’re doing a large water change, you should gently heat it to the same temperature as the water in the tank — this should be 75-80 degrees for betta fish.

Turn everything back on

Now that the tank’s clean and topped up with fresh water, it’s time to turn your filter, heater and any other electronic items back on. 

What you need to buy for cleaning a betta fish tank

API Algae Scraper

API Algae Scraper

Used for cleaning the algae off the inside of an aquarium, this is a must-have when cleaning your betta fish tank. It should be used only on glass and not on any other surface.

Where to buy: Sold by Amazon and Chewy

Python Pro-Clean Gravel Washer and Siphon Kit

Python Pro-Clean Gravel Washer and Siphon Kit

This device cleans aquarium gravel while siphoning off water, getting two jobs done at once. It is suitable for aquariums with a capacity of 20 to 55 gallons.

Where to buy: Sold by Amazon and Chewy

LEAKTITE 500 5-Quart Plastic Pail

LEAKTITE 500 5-Quart Plastic Pail

A simple pail that you can use to collect dirty water from your tank. It’s large enough to do a 20% water change of a tank up to 25 gallons.

Where to buy: Sold by Amazon

API Tap Water Conditioner

API Tap Water Conditioner

This water conditioner neutralizes chlorine and other substances in tap water that can be toxic to fish, making it safe to use right away. It should be used whenever you add a fish or water to the aquarium.

Where to buy: Sold by Amazon and Chewy

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How To Treat Cloudy Water In A Betta Tank

Cloudy water in a betta tank is nothing new to most owners. And the chances are at some point it’s going to happen in your tank as well. Even if you think you’re doing everything by the book, unfortunately cloudy water in an aquarium is bound to pop up eventually. While there are times where it’s down to poor maintenance or not cleaning properly, there are other times when the reasons aren’t so clear.

If your bettas tank water has become cloudy and you don’t know what to do, then keep reading. You’ll find out the main culprits behind cloudy aquarium water, how harmful it is, and how to treat it!

But the good news is you don’t need to panic! In most cases cloudy water in a betta tank is perfectly harmless.


What Are The Symptoms Of Cloudy Water In A Betta Tank

Believe it or not there can often be more than one symptom of cloudy water. Reading the signs is going to help you figure out the best way to treat the tank. If you lump everything together then you could treat the water wrong. Which could make the condition worse and make it even harder to see your betta!

And there are two main types of cloudy water to watch out for. One of them is white/grey and misty looking (sometimes making it difficult to see in the tank). And the other type is green. In both cases there’s a common symptom.

Appearing And Disappearing Rapidly

One of the most common symptoms of cloudy betta tank water is how quickly it emerges and then disappears. You could go to sleep one night with a tank that’s perfectly clear and wake up in the morning to see misty water. Then once again you could go to sleep with misty water and wake up for the water to be crystal clear.

Different Colors

Cloudy water in a betta tank will have different colors depending on what is causing it. It will either be white/gray, or green. Both of these have different causes which you’ll find out about soon. And both of them will require different treatment.

Different Levels Of Visibility

And lastly, you can expect different levels of visibility. Sometimes it’s going to be nothing more than a fine haze that you can quite easily see through. But in other circumstances, you may find it difficult to even see through the cloud. This can cause you to panic, but you shouldn’t worry too much just yet!

What Causes Cloudiness In Fish Tanks?

Now you know the most common ways that cloudiness is going to affect your betta tank you should also be aware of the causes. Unfortunately, some of them aren’t going to be in your control. But often times there is something you can do to prevent them!

Causes Of White/Grey Cloudiness

White and grey cloudiness are generally more common than green cloudiness. And there are a lot of reasons that cause it. Here are some of the main causes.

Dirty Gravel

If you’ve added new gravel to your tank, and you notice the water is cloudy, then it’s most likely going to be because of the gravel. This happens in new tanks and it’s because you haven’t washed the gravel enough.

However, if you’ve had your gravel in the tank for a while and you’ve moved it around too much then the same thing can happen. As your tank ages, a lot of small debris is going to sink to the bottom of the tank. When you disturb the gravel it shoots all the built-up sediment back into the tank.

Bacterial Blooms

This is one of the most common causes of cloudy water in a betta tank. But it’s not always harmful bacteria. This type of cloud rarely appears instantly, in fact sometimes it’s months before the bacteria bloom enough to make the water cloudy.

However, if it does happen quite quickly don’t rule out bacterial blooms. They can also happen rapidly when you put water in your tank for the first time.

A Change In Water Conditions

If the water conditions in your aquarium have changed then this can often cause your water to become cloudy. Once again this is because of bacteria in your tank. As the bacteria starts growing in the tank again it can cause it to become cloudy and white.

This can be caused by things such as pH changes and temperature changes.

Green Cloudiness

If your tank has started to go a cloudy green then you probably already know what the main culprit is. Algae. And there doesn’t need to be algae on the tank glass for this to occur. If your noticing green cloudiness caused by algae then here are some of the most common reasons why it’s happening.

Too Much Light In The Tank

One thing that algae love is light. If your light is too bright, or you’re leaving it on too much then it could be causing more algae growth in the tank then usual. And it doesn’t just have to be the aquarium light either. If your tank is in front of a window or you leave the lights in the room on, then algae can also grow because of this.

Too Many Phosphates

This is the other requirement that algae need to grow. Phosphates can enter your tank in a number of different ways. The most common way is because of decaying food and waste. The other source comes directly from the water you’re using itself. If you think this may be the case then it’s worth testing it. If it is then you can also buy bottled water specifically for betta tanks.

“No Fish, Yet My Fish Tank Is Cloudy!”

This is a very common occurrence a lot of betta owners have. When you’re first setting up your tank things may be fine at first, but eventually, the water will become cloudy with no probable cause.

If you notice this happening and you’re certain it’s not the gravel then there could be another reason. One of the most common reasons is decorations in your tank. If they’re not completely suitable or if you haven’t washed them enough beforehand then they can cause the tank water to become cloudy.

However, once they’re washed thoroughly and you’re sure they’re made for aquariums you won’t have this problem again.

If they’re still causing the water to become grey then you should remove them and replace the water in the tank.

Treating cloudy water in a betta tank isn’t hard. And if you do it right, you’ll be able to enjoy a nice clean tank! Here are a few ways you can do it!

Just Leaving It

In most cases, the best thing you can do is be patient and just leave the problem to clear up on its own. There are a lot of different cleaners and medicines that you can use, but in a lot of cases they only end up making it worse. Sometimes it’s best just to sit back and wait.

Cloudiness is often a natural sign of a tank establishing itself. It’s only when it stays for weeks at a time that you should consider a different tactic.

However, the only time that you should avoid just leaving it is when you know the cause. If you know it’s something to do with the gravel or the decorations, then you should clean it right away!

Introduce More Beneficial Bacteria

Another great step is to introduce more bacteria into the tank. There are a number of ways you can do this.

You can use an existing biological sponge from another filter to kickstart things. As well as that, you can also buy prepackaged bacteria culture to add to the tank as well.

Adding this beneficial bacteria is going to help balance out your tank.

Don’t Overstock Your Tank

Make sure you’re not adding to many fish to your tank at once. As a general rule of thumb, you’re going to want one inch of fish per gallon of water. Think about tropical fish in nature, most of the time they aren’t going to be all crammed together in one small space. So you should avoid doing that in your tank as well.

If you’re housing your betta alone then this shouldn’t be a problem, however, you shouldn’t house your betta in anything smaller than a 5-gallon tank.

As well as not overstocking your tank it’s also important that you don’t feed your fish too much either. Any food that doesn’t get eaten in the tank is going to cause more bacteria to bloom.

And if you’re worried about the fish getting too hungry, then don’t be. Fish aren’t like us, they don’t need 3 meals a day. In fact, some people even recommend that you fast your betta once a week.

Perform Regular Water Changes

You should also be performing regular water changes. How much you change is dependent on the size of your tank. However, if you’re not sure how much you should change then a good place to start is 10-15% a week.

Changing your water regularly is going to help your filter and your tank by removing some of the bacteria in your tank. As well as that it’s also going to dilute any harmful buildups of bacteria and phosphates!

Maintain Your Filter

And lastly, make sure you’re maintaining your filter. If you notice that it’s not working as well as it used to then it may be time to clean it.

You should also be cleaning the filter media often to make sure there’s no buildup of anything nasty.

While maintaining a filter seems daunting it’s a lot easier than you think! In fact, here’s a handy guide on cleaning your tank and filter!

Reduce The Amount Of Light

If you’re tank is suffering from cloudy water that’s green then you should reduce the amount of light. Algae thrive on light and if you have too much of it in your tank then it’s going to grow out of control.

If you have to it may even be necessary to cover your tank for a day or two with a towel to make sure that no light can get into the tank.

And also always make sure that your tank is out of direct sunlight.

Gravel Vacuuming Often

Of course, you should be cleaning your tank regularly, and vacuuming the gravel is also going to help. When you clean your tank make sure you’re vacuuming the gravel.

Bacteria and algae are both going to grow if there’s a lot of waste decaying in the gravel. You can solve this problem by vacuuming the gravel of your tank at least once a week!

Why Is My Fish Tank Cloudy After Water Change?

If you find that the aquarium is cloudy after a water change, then you’re just like many others! And the good news is it’s very common and rarely harmful.

It’s most likely due to where you’ve stopped your filter. When your filter stops and starts small debris can build up. When you turn it back on, the debris is shot back into the tank causing it to become cloudy.

If it happens right after a water change then it could be because of sediment in your tap water. If you leave it for a couple of days it should clean up.

Is Cloudy Aquarium Water Harmful?

Luckily cloudy aquarium water is rarely harmful. If you notice it in your tank and your betta is acting fine then normally you should just wait it out. If the problem hasn’t resolved itself in 10 days then you should take a sample of water to your nearest aquatic store.

Cloudy green water is the water you should worry about a little bit more. While the algae itself isn’t harmful the underlying problems could be.

If you notice green cloudy water in your tank you should check the water parameters to make sure everything is normal! (Learn more about green algae.)


You should not be fully prepared to deal with cloudy water whenever it occurs in your bettas tank! Here’s a quick recap of everything you need to remember.

  • The most common symptoms of cloudy water in a betta tank include it appearing and disappearing rapidly, the cloud can be different colors, it can also have different visibility levels.
  • Cloudiness can be caused by dirty gravel, bacterial blooms, and a change in water conditions. If it’s green too much light in the tank or too many phosphates.
  • If you notice your fish tank is cloudy with no fish in ti then it’s often caused by gravel not being washed properly. However, it could also be a bacterial bloom.
  • To treat cloudy water in a betta tank, normally it’s best just to leave it to clear up on it’s own. However, you can also add more beneficial bacteria to stabilize the tank, make sure you’re not overstocking, perform regular water changes, maintain your filter, vacuum the gravel and reduce the amount of light.
  • If you notice a cloudy betta tank after a water change it’s most likely because you’ve stopped the filter. When it turns back on any buildup of debris is shot into the tank.
  • Cloudy aquarium water is rarely harmful, however if it’s green you should check the parameters because it could be harmful to your plants.

Is Your Betta Fish Living Alone?

If so, then you may be interested to know about lots of tank mates that can live with them. So check out the Ultimate Betta Tank Mate Guide where you’ll learn about 68 different tank mates that can live with your betta, as well as fish to avoid. You’ll also learn how to create the perfect environment for mates, how to introduce tank mates and much more! So check it out!

Betta Tank Mate Guide

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How to clean a betta fish tank

My Aquarium is Complex! How Do I Clean it Without Removing Everything?

If you have a complex aquarium,  you WILL need water prepared for topping up the aquarium after the process of cleaning. The water lost during the clean (removed via the vacuum) will be dirty and  and we recommend you do not reuse it.

Some aquariums can be more than just a bit of gravel and ornaments. They can be heavily planted, carefully arranged, and can contain more than just a betta, so it can be a pain to move everything for the clean. However, cleaning the aquarium without the removal of everything can be done without great difficulty; here’s how.

Firstly you’ll need two basic things: an aquarium gravel cleaner / vacuum (view one here on Amazon), which can also be called an aquarium syphon and an aquarium scrub (magnetic, if possible). Once you have those in hand, you can do the following:

Depending on how much water you plan to remove from the aquarium when following the method below, you may or may not want to remove your betta from the aquarium. If you do wish to, remove the betta from the aquarium using a net or cup. It’s fine to hold the betta in a large mug (or something similar) with some water from the aquarium whilst you clean. Cover the temporary container so that your betta can’t jump out.

  1. A gravel cleaner vacuums the gravel, removing any waste or debris. Gravel cleaners can be powered / motorised or can work like a siphon. They are a long tube-like structure with two ends: the vacuuming end (this is placed in the gravel) and the output end (this is where water carrying debris comes out — it should be placed in a bucket). Simply place the vacuum column in the gravel. If your cleaner is non-motorised, to start suction you may need to slightly shake the column (this is to do with the science of syphoning). How this works will be stated on instructions that come with the cleaner.
  2. Once the cleaner starts to suck, move the column throughout the gravel. The cleaner won’t carry the gravel away but will vacuum up any light debris and waste in the gravel. It will, however, remove water from the aquarium. Vacuum the gravel around any plants or ornaments and try to clean the gravel the best you can without causing disruption to the aquarium layout. The movement of the gravel will bring up debris into the water, but if you have a filter it will catch the debris.
  3. Once the gravel looks thoroughly clean, consider the walls of the aquarium. If they need a scrub, use a magnetic aquarium scrub to remove any dirt or algae. You can scrub it off if you have a non-magnetic aquarium scrub.
  4. At this point, the water in your aquarium  may look filthy. When you push the syphon through the gravel, sometimes not all of the waste gets vacuumed up. This is fine; a good time to clean your aquarium is when you’re coming up to a water change. When cleaning the gravel, the cleaner will remove a percentage of the water. Bear in mind the longer the cleaner is in the aquarium, the more water it will remove. You won’t be able to replenish the aquarium with the water removed by the cleaner as this water contains large amounts of waste. If you’re planning to do a large percentage water change, remember you MUST prepare the water in advance. Anything more than a 50% water change must have water prepared in advance.
  5. Allow the aquarium to sit for 10 minutes so the filter can remove any debris. Re-add the percentage of fresh water needed. It’s a good idea to change the filter cartridge at this stage too, as this will help with the removal of extra debris.

To note: depending on the strength and size of the vacuum it may actually be a good idea to remove the betta from the aquarium. We’ve never heard anyone say that their betta has been sucked up a gravel vacuum whilst cleaning but it’s best to be cautious. The piping on most aquarium vacuums isn’t large enough to suck up a betta anyway. Just be wary when cleaning with your fish in the aquarium.


Fish clear betta

Shtaket, who dispersed the crowd with his water cannon, came down from the roof. Since we practically could not fuck, I drove Lenka off me and picked up the handle of the shovel, which was lying next to me. It would be smoothly carved.

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Cock in his hot mouth. I received indescribable pleasure. I saw that his hands were still behind his back, and his erect penis was throbbing intensely. If I let him touch him with my hand, I think he could explode immediately.

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And Aristotle. And Tchaikovsky. And Jean Mare.

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