Dwarf Gourami Troubles

Google search "Fishdoc".Looks like they recommends epson salt bath or peas.The hospital tank needs an established filter.

I took the filter from the 6.6 before i put him in here that tank has been up for about 3-4 months, it is cycled.
 
I'd try the peas. He may be constipated.

How do i go about doing this? mind u i never had this happen to any fish. He is still very much willing to eat (if he can manevour there) its hard really really hard for him to control his swimming.
 
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