I have a 90 gallon tank with 3 damsels, 1 nemo, royal Gramma, 1 hermit crab (thanks to my BCS), 5 snails (that only crawl on the glass), 1 banded coral shrimp, and 1 pink tipped hatian anenome. The water quality is fine, some live rock and some neutral rock. The florescent lights are on for...