How to improve the survival rate of river fish in hotel fish tanks

1 The filtering system (regarding filtering, it is important to learn that there are posts on the Internet) is stronger, and if it is not strong, leave a few less.

You don't need to change the water all the time, just change it once a month and let it dry for 2 or 3 days. Put water for at least 7 days before releasing the fish (the filtration system should be on when there is no fish).

Wash the filter cotton every 3 15 days. Don't wash it all, just half.

Don't feed the new fish. Observe the food intake after 3 or 4 days, and feed it every 2 days after normal. If you are in good condition, feed it once a day and eat it within 5 minutes each time. Once a day at most.

5 filtration should be fully open 24 hours a day. Buy a fish and raise it first. After 15 days, you can gradually add fish (new fish are skilled in the tank and learn by themselves online). The total length of the fish (cm) cannot exceed the water capacity of the fish tank (unit liter). For example, a 50-liter fish tank can only raise fish with a total length of 50 cm (5 fish 10 cm, 10 cm).