About 10 black skirt tetras, Raphael catfish, Upside down catfish, BGK, Oscar, JD, and a pleco. It used to also house 5 clown loaches and two BIG bala sharks plus a few rainbow fish but I went out of town and left the tank to the responsibility of my buddy and he had a "die out." Still not really sure how it happened, but anyway that's what's left! Oh! I almost forgot that there are four GBR in there too!