i have a 40 gallon FOWLR with 2 clowns, 1 yellowtail damsel, 1 purple dottyback, and 1 Coral Beauty. Recently my Coral Beauty started acting strange. Wont eat and won't come out from a hiding place. I even put frozen brine shrimp (which they always go crazy for) and she still didn't eat. She is the only one acting this way. Not sure what to do!!!