My blue hippo tang developed this almost clear/ white spots along the spine and face. I’ve had him in qt for about three to four months trying different treatments. I have dosed Fritz coppersafe, pimafix, and melafix. Little to no result from all following directions on bottles. He still is extremely active and eats like a beast through does not seem to be getting worse. Is he ok to put back in display or what other meds should I try. Thank you picture below (sorry it’s a little blurry he’s very active please zoom in)