Two days ago I noticed my clown I have had for over 2yrs had his gill open on one side, his eye was cloudy (this has mostly cleared) and now it looks like the area is ulcerated. He is swimming fine and is eating like normal. Does anyone know what it is?
my nitrates are high at 20 -did a water change a few days and doing another today to get it down. Is it a parasite? I have been adding NOPOX to my tank. There are no aggressive tank mates...he is the boss and there have been no new additions.
Sent from my iPad using Aquarium Advice