[ReeferNoob4ever]

I have one of these in my 20 gallon. It is getting close to 12" now and eats anything I feed the tank but I direct it into its mouth with a turkey baster because it mostly stags under the rockwork. My gf named the fish Ursula and she has made a tunnel system under 100 percent of the tank (3" aragonite substrate). Although she only sleeps in the middle section. She is about as thick as a sharpie marker.

Hate all you want but I once kept an African cichlid in a 2.5 gallon tank for 3 yrs and it was fine. You just have to feed them and keep your tank clean.