They are very active, and colorful. I have 3 in a 26G. They eat just about anything, flake food, bloodworms, peas, freeze-dried plankton, brine shrimp, and more. Mine really likes the freeze-dried plankton. My tank has a ph of about 7.2-7.4, kh is 60, gh is 100. I have driftwood in the tank, completely covered in java moss. they share the tank with cardinal tetras, rasboras, glowlites, cory cats, and cherry barbs. A very fun fish to watch.