Te gills are red because of the bad water quality.
Are scales sticking out?
If he really bloated epson salt baths.
He really needs an internal bacteria med. Myxazin an external bacteria med.
There anti internal bacteria med by interpet. But I don't rate the med much.
If you can isolate I would suggest furanol 2 by jbl. But only in isolation as it wipes the beneifical bacteria out in the filter.
Are scales sticking out?
If he really bloated epson salt baths.
He really needs an internal bacteria med. Myxazin an external bacteria med.
There anti internal bacteria med by interpet. But I don't rate the med much.
If you can isolate I would suggest furanol 2 by jbl. But only in isolation as it wipes the beneifical bacteria out in the filter.