I am afraid that Mr. Red is not doing to good. :-[ I don't know what more I could do. I moved him into a 5 gallon tank thinking it would be better for him. Even though he loves it, I am having more problems with him now then I was when he lived in the 1 gallon. I started treating him with Melafix about a week and half ago to help his tail grow back. After a week of him being on the meds I noticed that he was starting to develop popeye and cloud eye. So last Sunday I started putting Pimafix in along with melafix. I got another filter in place of the carbon filter because I thought that was the reason he had gotten popeye and cloudeye because I didn't replace the carbon filter with a non carbon filter and the water was getting cloudy. So, figured that was the reason he got the popeye and cloudeye. There hasn't been many changes at all since I started him on the both meds. The water is being kept clean and levels are good too. I just don't know what else I can do to help him. His tail hasn't shown any improvement either. In fact it's starting to look worse then it was.