How Often Should You Change Betta Fish Water

Last Updated on October 5, 2020

Providing your betta fish the best kind of water in its tank will be one of the most important responsibilities of a betta fish owner.

At the same time, learning how often should you change betta fish water will help you provide them with the best quality possible.

This post will serve as a general guide to doing water changes for the tank where your betta fish will live.

How often should I clean my 1-gallon betta tank?

Please consider at least 3 to 5 gallons as a minimum tank size to provide a suitable environment for your betta fish. This will lessen the chance of sudden fluctuations in water parameters. But, if you keep your betta fish in a 1-gallon aquarium, then prepare to do more work to keep your betta fish’s water in excellent condition.

If your 1-gallon betta tank has a filter, then you can perform 15-20% water change once a week. If it doesn’t have a filter, then a 30-50% water change per week will be necessary.

The reason for doing water change is to minimize the amount of ammonia, nitrites, and nitrates in your betta fish tank. Ammonia is toxic, nitrites are less harmful, and nitrates are even less toxic. Performing water changes keep these substances to a minimum. You can use a master test kit to know the exact parameters in your betta fish tank.

You will need the following items when doing a water change:

  • A bucket to contain the new water to add to your betta fish tank.
  • A bucket to hold the dirty water you siphoned out.
  • A water siphon that will suck out the old water.
  • Water conditioner neutralizes chlorine, chloramine, and heavy metals.
  • An aquarium thermometer.

Here’s a simple step-by-step guide to help you do a water change:

  1. Fill up the bucket with tap water and add the correct amount of water conditioner as advised by the manufacturer. Leave the water for a while near your betta fish tank.
  2. Use the siphon to remove 20-25% of the water from your betta fish tank. Imagine taking out ¼ of the whole amount of water in your fish tank.
  3. Check the temperature of the water in your betta fish tank and compare it to the temperature of the newly treated water in the bucket. Make sure they are as close as possible to avoid causing temperature shock to your betta fish.
  4. Slowly add fresh water into your betta fish tank. You can use a cup and gently pour water in. This will make the flow of water as gently as so it will not stress out your fish and mess up the decor.

That is the process of a partial water change. This is better compared to a complete water change because this prevents any sudden fluctuation in water parameters which may stress out your betta fish.

Related: Can Betta Fish Live in Tap Water?

How long should water sit before adding betta?

Treat water from the tap with a water conditioner before using it for your betta fish. Water conditioners are fast-acting and are effective as fast as 5 minutes. It is better to keep the betta in the fish tank with its old water instead of fishing it out and doing a complete deep clean with a full water change. This will drastically change the environment of your betta fish and causes it a lot of stress.

The water added back into your betta fish tank should have the same temperature as close as possible to the old water. You can achieve this by letting the treated water sit for around 10 to 15 minutes in the same room where your betta fish tank is. Check with an aquarium thermometer if the temperatures are close. You can add cool or warm water as necessary to meet the temperature and a difference of 1 degree more or less is already good. 

How do I keep my betta fish water clear?

A filter will do the trick in keeping betta fish water as clear as possible. A filter has material that traps debris floating inside your fish tanks such as fish waste, decaying plant matter, and uneaten food.

Also, avoid overfeeding your fish. Give it the amount of food it can eat within 2 to 3  minutes. Take out any uneaten food. Uneaten food will lead to ammonia levels to increase. It will also add to the dissolved organic compounds in the water column which may encourage the growth of too much bacteria. This will result in a bacterial bloom which makes the water cloudy.

We hope this article will help you understand how often should you change betta fish water to keep them clean and healthy!

How often should you change bettafish water

What do bettas like in their tank?

Do bettas like light?

Betta fish dislike a lot of light in their tanks. In their natural environment, they have lots of plants to hide in. Betta fish would hide under the shade of large leaves of plants such as amazon sword, anubias, and java fern.

Use a light that has a dimming feature to lessen the stress on your betta fish due to too much light. Too much stress will hurt your betta fish and make it prone to disease.

Do betta fish need rocks in their tank?

Betta fish do not need rocks to survive in their tank. Rocks, pebbles, and driftwood used to decorate a fish tank are collectively called hardscape. These will enhance the aesthetics of your fish tank and will accentuate the beauty of your betta fish. 

Some betta fish enthusiasts are also into the aquascaping hobby. This is the creative part of arranging hardscape and live plants to make an aesthetically appealing underwater scape. You can create caves, tunnels, and submerged forests through which your betta fish will surely love to explore. 

Do betta fish like plants in their tank?

Aquatic plants will provide shelter and a point of origin for a betta fish’s territory. Aside from making your betta fish’s home look so natural, live plants also help keep the water in your betta fish tank clean by sucking up excess nutrients in the water. Betta fish will not eat or uproot plants making it a perfect inhabitant for planted tanks.

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