How To Take Care For Betta Fish. In their breeding it is important to know that the Betta is a real carnivore. A mild bleach or distilled white vinegar can be used for cleaning and at least once a week it should be done.
Since bettas are tropical fish and are temperature sensitive an aquarium heater is a necessary item to have. Avoid placing it under direct sunlight like near a window. The ideal tank size for a betta fish should hold least three gallons of well-filtered tank water.
Change 10-20 of the water in your tank every two weeks if you have a filter or change 25-40 of the water every week if you do not.
The smaller the tank you have the more frequently you will need to change the water. Bettas need a tank that is at minimum 5 gallons. Bettas are tropical fish and they require warm waters to flourish normally. A mild bleach or distilled white vinegar can be used for cleaning and at least once a week it should be done.