Different species and such, I have 1 120gal that has the Altifrons with some Porthole cats and the Rainbowfish and Roseline sharks.. 1 120gal Malawi tank thinking of switching that to a Severum tank.. 56gal C. Nano's with Corys and Brochis cats.. 40 breeder HRP tank.. 30gal Tanganyika Juvies tank soon to be cleared out by the Indy auction.. 30gal Albino BN pleco tank.. 20gal Rice Killi tank.. and the 40 breeder that I am picking up will house a breeding pair of Green Terrors that my friend is holding for me.. I am also getting another 30gal to replace the 20gal.. LOL too much going on.. The Ponds will be in operation soon by the end of May..