When I left for work at 5pm there was zero white spots on any fish. My boyfriend just got home and sent me this. Can ich cover a fish that quickly? The scopas tang is covered and the trigger is starting to get it as well over most of his body. I have dealt with Ich before but it started gradually. I also have 2 dwarf lions in the tank so I know there are certain things i cannot dose the tank with. Please help! Water parameters are good other than nitrates at 10