Swim Bladder Disease
Swim bladder disorder
Moderate severity
A disorder of buoyancy control, common in fancy goldfish and bettas.
Symptoms
Floating upside down, sinking to the bottom, struggling to stay upright or swimming at odd angles.
Causes
Overfeeding and constipation, gulping air with floating food, rapid temperature changes, or bacterial infection and physical deformity.
Treatment
Fast the fish for 2-3 days, then feed a blanched, de-shelled pea to relieve constipation. Lower the water level and raise temperature slightly. Treat with antibacterials if infection is suspected.
Prevention
Soak dry/floating foods before feeding, avoid overfeeding, feed vegetable matter, and keep temperatures stable.
FAQ
Why is my goldfish floating?
Is swim bladder disease fatal?
This information is general guidance, not veterinary advice. Consult an aquatic vet for serious cases.