BlackReptile

All that's missing now is a nice little one of these..

Hi guys I have a very large tank, fine water conditions ect, and collect a handful of big fish. But my silly but nice friend just gave me an old albino oscar as a birthday gift they found on trademe. Its about 30cm, eats fine, and has a calm nature, only problem is its swim bladder is permanently damaged. Although he seems healthy, he bobs around all day at the surface and can't explore the tank or interact with the other fish. SO.. I want to give him a helping hand. What imaginative devices do you think could compensate his buoyancy issue? I've tried tying a small weighted necklace around him, and it has helped, only issue is it keeps slipping off due to the oscar's shape. I saw this contraption of hosing pieces for a similar issue on a goldfish.. any opinions physicists? Any ideas would be much appreciated