What should you do if your male fighter fish has a lot of bubbles in his tank and he is front female all the time but they are separated?

If your male betta fish has a lot of bubbles in his tank and is constantly facing the female betta, even though they are separated, it is likely that he is trying to build a bubble nest. Bubble nests are constructed by male betta fish as a place for the female to lay her eggs. If your male betta is exhibiting this behavior, it is important to provide him with the proper materials to build a nest, such as leaves or other plants. Additionally, it is important to ensure that the water quality is good and that the tank is the right temperature for betta fish. If the water quality is poor, or the temperature is too low or too high, it can stress the betta fish and make it difficult for him to build a bubble nest.

Here are some things you can do to help your male betta build a bubble nest:

Provide him with leaves or other plants. These materials will give him something to anchor the bubbles to.

Ensure the water quality is good. Test the water regularly and make changes as necessary.

Keep the tank at a temperature of 78-82 degrees Fahrenheit.

If your betta fish does not build a bubble nest after providing him with the proper materials and environment, it is important to consult a veterinarian or aquarium specialist to determine the cause of the problem.