You can feed it to them just not every day give them a varied diet. Feed it to them like once a week. I feed mine tilapia, catfish, buffalo fish, perch, herring, salmon (not too much tho it's an oily fish), crawfish, shrimp, muscles, clams, oysters, frozen crab. Live food I do dwarf frogs, sometimes rosy reds, shiner minnows, red worms, night crawlers, crawfish (break off the claws), shad and crickets. You can find mostly all I said at walmart or a fresh fish marketWhy is it bad to feed them that? I feed my Oscars and Senegal fish and beefheart and bloodworms. Usually don't feed them much else. Where and what should I feed them? Just buy tilapia at walmart and cut it up?