Since the hurricane (last thursday) my tang has been hiding behind a rock. about two days ago she stopped coming out to eat. My parameters are ammonia ~0, nitrite~0, nitrate less than 5, phosphate ~0. All my other fish are healthy and happy. Although it is hard to tell, I can't see any spots or marks on her.
Maybe she has a digestive parasite? What could it be?
I've had her for 3-4 months now and she has sometimes gone into hiding, but never stopped eating.