I have two,they are so small and cute. They look sort of like an anchor when you look down on them. They can sometimes be found in the day hiding on a leaf, or under a stone usually. They are carnivorous from what I can tell. I feed frozen Hikari Bloodworms, and I raise Grindal worms for the tank. Along with lots of other good foods. They do not bother my fish at all. Baby shrimp perhaps, their mouth is pretty small for a catfish. I have kept amanos,green lace, and bamboo shrimp in this tank. My other small shrimp did eventually get picked off in this tank, but I blame my morpho tetras. I recently added back a couple RCS & some tigers, since I only have two morphos left. So far the adults are ok.