Red-tailed black sharks eat small fish, shrimps, mealworms, red worms, etc. They prefer animal feed, and any live bait is acceptable.

The red-tailed black shark has a miscellaneous diet and has the title of sweeper. The moss and residual bait in the fish tank And algae can be eaten, but it still prefers live food, so when feeding, red nematodes and the like can be fed more.