First keep the temperature at about 26 degrees with a heating rod, and then spread thick river sand on the bottom of the water, so it will have a strong appetite.

Then, you can feed snails, snails, earthworms, wheat worms, bloody chicken and duck intestines, and frozen loach.

You can also directly raise the loach and catfish together, let the catfish's leftovers be eaten by the loach, and give them to the catfish when the loach dies, so that the cycle is better.

Remember, the water temperature must be enough, otherwise it can't eat anything delicious.