Put some small feeder fish in there and see what it does.
"MW" wrote in message
...
Hi all

My Red Devil is suffering terribly. He does not even want to eat anymore.
He is on his side on the bottom of the tank all the time and to me it
looks
as if there is something wrong with his swim bladder, because he seems to
be
off-balance as well.

Is there anything I can do to treat this condition?

Any help will be appreciated

He is alone in a 3ft x 1ft x 1ft tank and the water quality is superb

Kind regards
MW