I purchased a 7 inch green severum today from my lfs that was not there last week when i went. I was so stunned at the fish i failed to inspect it properly. When i got it home i noticed it had been fairly battered and its finns are shredded. But more worrying it has about 11 small holes in its head and 2 of which are really deep. Its feeding well and is very active. I know clean water will help to treat it. Can anyone offer me any advice. Will it get better? Shall i add an antibac/fungal treatment too? Thanks