I am in other groups on Facebook but have not received a response from them. One of the gouramis we have started looking swollen/bloated on Monday. They said to add epson salt to the tank to help with that. Tuesday morning he looked pretty much normal again, but I notice his dorsal fin is not up like it should be and he isn't as active as before. Should I put him in a hospital tank and treat with maracyn water treatment or treat the whole tank with the other gourami in there as well? He also has this one swollen spot that's been there since last week... any advice for this little guy is appreciated