The black Shark, also known as the Black Shark is great for the semi-aggressive community aquarium, as long as they are the sole sharks and the other tankmates are of similar size. The Shark is a beautiful fish with a jet black body and a bright red tail. The dorsal fin is marked with a white tip.It requires a large aquarium with driftwood, rocks, and spots of dense vegetation. This shark may set up territories around the aquarium. The Shark will become very aggressive towards its own species when mature.