Betta fish eat black-shell shrimp. But in general, they don't eat black-shell shrimp. Thai betta fish live in the upper layer of water, while black-shell shrimp live in the bottom layer of water, which they rarely encounter. Moreover, the shell of black-shell shrimp is relatively hard, which will scratch the intestines and stomach of betta fish, so betta fish will not use them as the first choice food.

But there are special cases where in family feeding, when the breeder does not feed them for a long time, they will be very hungry. Or in the natural state, there is no food they like to eat. At this time, black-shell shrimp becomes their favorite food, and they will eat black-shell shrimp. However, before feeding, it is necessary to do corresponding treatment.

If it is live black-shell shrimp, they will carry some bacteria, viruses and parasites. If it is not treated before feeding, it will not only infect betta fish and cause them to get sick, but also bring harmful bacteria into the water to pollute the water quality. Therefore, sterilization is needed before feeding. If it is frozen black-shell shrimp, putting them directly into water will lower the water temperature.

When the water temperature changes suddenly, it will cause damage to betta fish. Therefore, it is necessary to thaw the black-shell shrimp before feeding. Black-shell shrimp has a hard shell, which will scratch the intestines and stomach of betta fish during eating. Affect their appetite. Therefore, their shells need to be removed before feeding.