Hi, I have noticed that my red dwarf gourami stopped eating in the community tank about 6-7 days ago. Then he became bloated and motionless, just hanging in there. I have isolated him to a hospital tank, have been medicating him with Furan-2 according to the description on the package for 4 days. He seems to be a little more active, but still not eating and bloating doesn't go away. What should I do now? Continue medication? Stop it and change the water? Switch to another medication? Any advice would help.