Bullet fish can't be raised in pure fresh water. A small amount of crude salt must be added to the water to neutralize the light water quality and adjust it to salty fresh water. Misgurnus anguillicaudatus is suitable to be kept in a bare tank, and it is best not to plant aquatic plants in the fish tank where Misgurnus anguillicaudatus is kept, which may easily cause the Misgurnus anguillicaudatus to be scratched.

It is best to cover the deep-water fish tank to raise the mudskippers, otherwise the mudskippers may jump out of the fish tank, and the mudskippers generally live in sediment positions such as estuaries and shoals. So you can lay a layer of fine sand or smooth pebbles at the lower end of the fish tank.