First, welcome to MFK. Second, you're going to get a number of "use the search function" replies. Ok, BGK. Very shy, likes to hide and does not like bright light. Get a knife house or use a plastic tube/glass jar or lean a rock against the front glass. Their eyesight is very limited so they use electrical impulses to navigate. Don't put in with aggressive tank mates but don;t put in with anything too small either. Feed bloodworms, brine shrimp, sinking pellets when smaller, larger pieces as it grows. Does well in planted tank. Mine eats chunks of fish and shrimp now. Not overtly aggressive but capable of defending itself. Mine has gone from about six inches to about 10-11 in 10 months. Tank mates are senegals, angelfish, juruense cat, a mango pleco and one lonely lf rosy barb.