Looking for some guidance. I have a 20 gallon aio with 2 clowns, a flametail blenny and a dottyback and multiple inverts and corals. Tonight while feeding the fish, i noticed the blenny has what I believe to be popeye in 1 eye. The other eye does not appear to be affected. My water quality isn't stellar, but I am going to do a 4 gallon water change tonight. Any advice on treatment to give him the best chance at survival?


