Pleco catfish don't actually eat poop. Joined Dec 1, 2003 Messages 2,896 Reaction score 0 Location San Francisco/San Jose, CA. Pictus Catfish are mainly omnivorous, and will accept anything you give it. Pictus catfish care is not that difficult if you know the basic guidelines to follow. The next day my other silver-tipped catfish started doing the same thing and eventually died. They seem to all getting along fine but i am having trouble feeding my pictus catfish. Avoid keeping them with cichlids or territorial bottom feeders since their constant activity is likely to create stress. Pictus Cat Habitat and Aquarium Requirements.