Small fish eat moss on the floor next to the fish tank, or buy aquatic plants for small fish to eat.

Pay attention to the water temperature must be moderate.

Small fish generally like old water. As long as it's not too cloudy, don't change it too often. Feed it 2 ~ 3 times a day, and it is better to finish it within 20 minutes each time. Pay attention to clean up feces and residues in time to avoid

The water quality is getting worse.

Second, there are several feeding methods:

1. Feeding paramecium, shrimp and earthworm. Harvest shrimp can go to the fish shop to buy eggs to hatch.

2. Egg yolk can be crushed, wrapped in gauze, shaken in a fish tank when feeding, or a small part can be put into water.

3. hello. If the feed for the big fish is solid granular feed, it can be ground and put into water, and the feed will be soaked and the small fish can eat it.

The fry are small, so it is ideal to catch red worms or raise "grey water" (including paramecium), but don't feed too much to prevent the water quality from being polluted.

Third, pay attention to water quality and temperature when changing water, and the change of water temperature shall not exceed plus or minus 2 degrees. Otherwise something will happen to the little fish.

Fourth, small fish are weak. Be careful not to make it sick. If you are sick, you should be treated immediately. It is best to use specific drugs.