I've had this Gourami for about 2 weeks now. At the end of the first week, I noticed he was not swimming very well (almost vertically when he actually swam, he would just kind of hover above the bottom most of the time), had some white patches on his head, and was not eating (that I knew of).
I put him in an isolation tank, and instantly his swimming was better, and then following a Petco employees advice I treated him with Maracide and Maracyn-Two for a week. He seemed to improve, he was swimming more and in a normal fashion, but tonight when I was deciding if I would move him back into his normal tank I noticed he looks like he is curved. I don't think he's always been like that, but I could be wrong. What should I do? Is this serious? I have a picture that hopefully I will figure out how to post...

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