I have had my Maroon clown for about 2 and a half years now and hes always been fine, though over the last month he has developed a bubbly growth in one of his gills and it seems to be taking over his gill somewhat like a tumor, i am worried, it doesnt look like the sort of thing that he can get over or out grow. I have never seen nor heard of this before in clown fish or any other fish, please have a look and any advise or diagnosis would be much appreciated, very treasured fish, not easy to come across where im from.
Thankyou
Thankyou