Powder blue gourmai sick?

Help please! I just bought this gourami 2 days ago, and the bottom half of his body appears to be turning brownish. Water is good, and I already separated him. What could this be?

see response in other thread

http://www.fishforums.net/threads/gourami-may-be-sick-help.451287/#post-3812171

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if you only got the fish 2 days ago I would return it and get a refund.

I would not get another dwarf gourami either because they are riddled with diseases that can't be cured.

Just returned it tonight. I just hope my other fish are okay! Thanks for the reply.