I have a sick jack dempsey that I did not expect to live this long, but he's still hanging on. He has been gasping for air for a long time but other than that looks good. The other fish in this tank are not doing this. I added more movement to the water surface but it doesn't seem to help. His gills do not look discolored. A little over a week ago, he quit eating and started getting weaker. He eventually started to turn sideways and I put him in a hospital tank. I have been treating with maracyn I and II with no sign of improvement. I have no idea what else to try so I bought clout. Can anyone please tell me if I should treat with this, and what are your experiences? I have read this is a last resort medication and will either treat or kill your fish? What are your thoughts?