I have a 75 gallon saltwater tank that has a mated pair of percula clowns, a royal gramma, red starfish, 6 blue green cromis, a banggai cardinal, 2 peppermint shrimp, and a cleaner shrimp, 2 tree corals, a bubble coral, a cabbage coral and "waving hands" coral, as well as several small crabs. I...