I have a 37 gallon reef tank with lots of live rock. Current stock: Coral Banded Shrimp (large), Peppermint Shrimp (2), Skunk Cleaner Shrimp, Blue Damsel, Zebra Damsel, emerald crab, hermits and snails. I am primarily interested in getting a fish that will interact with the Cleaner shrimp, but...