1. Enteritis: Angelfish who are simply suffering from internal transport can eat normally, but when they develop enteritis, they have started to lose their appetite or refuse to eat. We need to feed them some therapeutic medicine.

Second, changes in water quality: new fish cross the water after returning home, After three days of resting in the tank, start feeding in moderation, and then use an air pump catheter as a siphon to let the water in the tank slowly flow into the storage box, and then directly fish the angelfish into the fish tank.

Three, unsuitable for the bait: If you do not eat due to the incompatibility of the bait, you can generally use the sterilized red worm mixed with hamburger or feed to make the angelfish gradually change its mouth.