How long does it take for betta to change water before it burns its tail?

Without a filtration system, about one-fifth of the water is replaced every one or two days. Use the filtration system to change about one third of the water every three to six days.

If the betta burns its tail, the tail will turn black and disappear, looking like it has been burned. Usually, after the burnt tail is found, you have to wait two days to change the water, change one third, and then prepare the new water to be poured, add yellow powder to it, and then put it into the fish tank. Then change the water every few days. Generally, after three changes, it will be restored. If it still doesn't get better, you should continue to take the medicine, but the dose should be halved.

Betta culture method:

1. Water quality: When raising betta fish, use clean water. Generally, it is enough to put tap water for 3-5 days. Be careful, you can't use the tap water that you just connected. Because this water has a low temperature and contains chemicals, it may cause harm to fish.

2, water temperature: Betta is a tropical fish, like to live in warm water between 25-28℃. If the water temperature is too low, the vitality will drop, and people will not like to eat, resulting in decreased resistance and easy to get sick.

3. Feeding: Remember to feed the betta fish and provide it with nutrition when raising it. Generally, young fish can be fed twice a day and adult fish can be fed once a day. Fish food can choose dried red worms, bumper shrimp and so on. And it is best to feed several kinds of feed alternately. Be careful not to feed too much, or they will eat too much. Feed 7-80% full every time.