Hi I’ve had this juvi emperor angel for almost a year, no issues other than a bit of lateral line disease. Over the last two days I’ve notices white blotches on it. Eating well, always been a bit **** and easily spooked. Seaweed, angel formula, spectrum pellets etc. tankmates a Naso, Foxface, snowflake eel, and yellow tang. I’ve never noticed anyone picking on him either, no torn fins etc. parameters are good, nitrates around 15, used to be 60-80. Any thoughts?