How to Do a Complete Water Change for Betta Fish (Concern)

Do you have a betta fish and want to change the water but need help understanding where to begin? Look no further! We’ll guide you through the step-by-step process of how to do a complete water change for betta fish, ensuring their health and well-being. Written and straightforward instructions will give you the self-assurance to keep your Siamese fighting fish habitat healthy and clean.

What is a Complete Water Change?

 A “full water change” is when you change all the water in your Betta fish tank. It’s different from a partial dampness change, which only replaces part of the tank’s water.

Dirty tank moisture requires a complete change due to overfeeding, overstocking, or poor filtration.

When to Do a Complete Water Change

Doing a complete water change for your Betta fish at least once a month is recommended. If the tank’s moistness is cloudy, scents bad, or your Siamese fighting fish is stressed, you may need to change it sooner.

Betta fish need regular water quality checks to stay healthy.

How to Prepare for a Complete Water Change

Before completing a dampness change, you must prepare the necessary equipment and materials. What you’ll need is on this list.

  • A clean bucket
  • A siphon or a gravel vacuum
  • Water conditioner
  • A clean sponge or cloth
  • A thermometer
  • A net

It is also essential to ensure that the moisture you will be using to refill the tank is at the same temperature as the water in the tank. If you do this, your Siamese fighting fish won’t go through a temperature shock.

A Comprehensive Water Change: A Step-by-Step Guide

Here is a step-by-step handbook to follow the essential tools and resources at your disposal be present. How to do a complete water change for your Betta fish.

Remove the Betta Fish from the Tank

How to Do a Complete Water Change for Betta Fish

Carefully take your Siamese fighting fish out of the tank with a net and put them in a separate container with some tank dampness. It will help your Betta fish feel less stressed and keep them from getting injured when you change the water.

Drain the Water from the Tank

How to Do a Complete Water Change for Betta Fish

After gathering all the equipment, drain the tank to complete a Siamese fighting fish moistness change. Steps:

  • Turn off tank heaters and filters.
  • Unplug and remove the tank filter if needed.
  • Slowly scoop water from the tank using a clean bucket or pitcher, not disturbing the gravel or decorations.
  • Keep draining until the tank is nearly empty.

How to Do a Complete Water Change for Betta Fish (Clean the Tank)

How to Do a Complete Water Change for Betta Fish

Once the tank’s moisture has been drained, you can wipe it down with a new sponge or cloth. It’s crucial to clean the tank’s walls, decorations, and stone of any algae or debris that may have settled there.

Add Fresh Water to the Tank

How to Do a Complete Water Change for Betta Fish

The tank should be filled with clean dampness conditioned to remove any chemicals or other potentially harmful substances. Betta fish require moisture at the same temperature as the water in the bowl it is kept in.

Add Water Conditioner

How to Do a Complete Water Change for Betta Fish

Add a wetness conditioner to the tank to remove any chlorine or chloramines in the tap wetness. Follow the instructions on the label for the proper dosage.

Reintroduce the Betta Fish to the Tank

How to Do a Complete Water Change for Betta Fish

After filling the tank with fresh, conditioned moisture, carefully place your Siamese fighting fish back into the tank using a net. Allow your Betta fish to acclimate to the new water temperature for at least 10-15 minutes before releasing them into the tank.

Tips for Maintaining Clean Water

Here are some additional suggestions for maintaining clean and healthy moisture for your Siamese fighting fish:

  • Do regular partial moisture changes to remove any accumulated waste and debris.
  • Avoid overfeeding your Betta fish, as excess food can lead to poor water quality.
  • Use a high-quality filter appropriate for your Siamese fighting fish tank size.
  • Test the water regularly using a moisture test kit to ensure that the pH, ammonia, nitrite, and nitrate levels are within a healthy range.
  • Avoid using soap or other cleaning agents when cleaning the tank or decorations, as they can harm your Betta fish.


Performing a real wetness change for your betta fish is critical to maintaining their health and happiness. By following the efforts outlined in this writing, you can ensure that your betta fish’s home is clean and free of harmful toxins. Remember to be soft with your fish during the process and take the necessary protection to stop stress or injury. With some care and attention, you can provide your betta fish with a safe and cozy environment to thrive. We cover all the topics related to betta fish.


Can I use tap water for a Betta fish water change?

 Siamese fighting fish water changes can use tap water. Water conditioners remove harmful chemicals and contaminants.

How often should I do a complete water change for my Betta fish?

Betta fish need a monthly water change.

Can I add new decorations or plants after a water change?

After a water change, you can add new decorations and plants, but rinse them well before adding them to the tank.

Can I return my Betta fish to the tank immediately after a water change?

No, your Siamese fighting fish should acclimatize to the new water temperature for 10-15 minutes before entering the tank.

Can poor water quality harm my Betta fish?

Poor water quality can cause fin rot, ich, and bacterial infections in Siamese-fighting fish.

Emma is the wordsmith behind the insightful articles and guides on our website. Her extensive research and passion for fishing shine through in every piece she creates. Whether sharing angling tips or delving into the latest conservation efforts, Emma is dedicated to providing valuable and engaging content.