How to clean a betta fish tank

How to clean a betta fish tank?

As a new Betta fish owner, you may be wondering how to clean your fish tank. It may seem intimidating, but it is a simple process. You need to learn all aspects of cleaning your Betta fish tank, from how often it needs to be done to clean the tank. The frequency of cleaning your tank will vary depending on the size of the tank, the number of fish, and the overall conditions of the tank. However, the cleaning process will be less time-consuming if you maintain your tank regularly. Keep reading to comprehensively understand how to clean your Betta fish tank.

How to clean your Betta fish tank?

Prepare to clean a betta fish tank:

The foremost thing you have to do is wash your hands before cleaning the tank to avoid spreading germs or dirt. Take time to make sure your hands are clean, and it will help prevent any accidental contamination of the tank during the cleaning process.

Unplug the filters:

Unplug all the electrical equipment, such as heaters, filters, lights, and any other appliances, before starting the cleaning process of your fish tank. Even though these appliances are designed for use in a fish tank, it’s better to be safe by keeping them unplugged and away from the tank during cleaning. It is a precautionary measure to prevent any unfortunate incidents, such as the equipment falling into the tank or getting submerged in water, which could harm the equipment and the fish.

Gather materials:

Firstly, you need to gather some essential tools and materials. Begin by setting up a safe and clean space to temporarily house your fish while you clean the tank. You can use a clean cup or bowl and fill it with some of the water from the current tank, and it will be enough to give the fish some space to swim comfortably. You will require some tools to clean the water tank. These include a sink, a plastic cup or net to scoop out the fish and water, paper towels, and a scrubber to clean the inside of the tank. You will also need a water conditioner, which you can find at most pet or aquarium stores, a sieve to clean the gravel, and a plastic spoon to help you with the cleaning process.

Remove the fish from the tank:

Use a cup or net to take fish away from the tank. Take your time and carefully handle the fish, being mindful of its fins. You may need to move slowly and patiently to get the fish to settle into the cup while underwater. It will allow you to lift it straight up without harming the fish. Place the fish into the glass or bowl filled with tank water. It’s crucial to take precautions to prevent the fish from jumping out of the container, as Bettas are known to be skilled jumpers. Use a lid to cover the container where you’ve placed the fish to ensure its safety.

Empty tank:

Now, empty the tank by draining the remaining water through a sieve placed over the sink. It will prevent any gravel or small objects from accidentally going down the drain. Also, remove any decorative items in the tank before draining the water. Once the water is drained, you can remove the decorative items and place them on the gravel in the sieve. It will help you to clean the inside of the tank without worrying about the decor.

Wash the gravel under warm water:

After emptying the tank, it’s time to clean the gravel thoroughly. Start by running the gravel under warm water, using your hands to fold and mix it while shaking it from side to side. It will remove any dirt, feces, or leftover food that may be present in the gravel. Make sure the gravel is cleaned thoroughly, and use your hands to work through every part of it. It’s essential to be meticulous in this process to make sure that no debris is left behind.

Rinse the tank:

Once the tank and decorations are clean, dry them well with a paper towel, and make sure to remove any excess moisture. Use a soft scrubber to carefully clean the inside of the glass, making sure not to scratch or damage it. Avoid using soap or other cleaning agents when cleaning the tank, as these can leave behind harmful residues that can harm your betta. Instead, rely on warm water and gentle scrubbing to get the job done.

Refill the tank:

Once you have cleaned and dried the tank and its decorations, it’s time to refill the tank. Place the cleaned gravel and plants back into the tank before refilling it. Then, pour new water into the tank and add the appropriate amount. After adding the water conditioner, use a plastic spoon to stir the water thoroughly. It  will ensure that the conditioner is mixed evenly and uniformly into the new water. Remember to reserve enough room in the tank for the original water you had taken out earlier. Once the new water has been conditioned and stirred, pour the reserved old water back into the tank and mix it well with the new water.

Frequently asked questions:

Q1: How often should you clean a betta tank?

A:  You can clean a betta tank at least once a week or every two weeks at the latest. Regular cleaning will help to remove excess food, waste, and debris that can accumulate in the tank.

Q2: How long does it take to clean a betta tank?

A:  On average, it may take about 30 minutes to an hour to clean a betta tank properly.


Cleaning a betta fish tank is essential to maintaining a healthy and safe environment for your pet fish. You must unplug any electrical equipment, remove the fish, empty the tank, and clean the gravel, decor, and glass. Then, Refill the tank with conditioned water, and add the reserved old water back in to help maintain the aquarium’s natural balance. You can clean a betta tank at least once a week or every two weeks at the latest. Remember, never use soap or harsh chemicals when cleaning the tank or decor, as it can harm your betta fish. Your betta fish can thrive in a clean and healthy environment with regular maintenance and proper cleaning,

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