Aquarium Forums UK

My Dwarf Gourami has a swim bladder problem, is there a definite cure? in the past this usually doesn't end well.

Depends on the problem. Various things can affect the swim bladder.

The problem is he can't control his movement, he is resting on top of the filter on his side and clearly distressed.

There are various things than can affect a swim bladder, and "swim bladder disease" tends to cover them all. Cysts, tumours, infections. Mycobacter is a common cause, which can't be treated.
Dwarf Gouramies are one of the weakest fish you can get these days. You could try a bacterial treatment but you'll be very lucky if it works.

Remember to half-dose with labyrinth fish.