hi again this is going to sound insane, but some of the fish in the 15g tank seem to have small amounts of dark green grime on them, a little bit like algae between their scales. They look perfectly happy but I was just wondering if this is likely to be a problem?
this is going to sound insane, but some of the fish in the 15g tank seem to have small amounts of dark green grime on them, a little bit like algae between their scales. They look perfectly happy but I was just wondering if this is likely to be a problem?