So today my bi color blenny died. I had a tang die after two days of having him and I am unsure if it is related to the tang death or not. Tang died on Monday today is Wednesday. When I pulled him out of the water his head was almost completely detached. Never saw any signs of aggression towards him as my blenny was the most aggressive fish in my tank and had no problem biting anyone he felt deserved it. I am nearing my end with this hobby if I can’t figure out why my fish are dying nearing every other day.