Goldfish Floating at Top: Swim Bladder Disorder in a Tiny Tank

A goldfish in a 6.6-gallon Aqua Qube struggles to swim, stays at the top, and sinks with effort. Robyn diagnoses likely swim bladder disorder, common in fancy goldfish due to compressed swim bladders. The tank is far too small for even one goldfish.

Recommended Actions

• Upgrade to at least a 30-gallon tank (5x current size).
• Pre-soak food, feed sinking pellets, or offer cooked peeled peas.
• Test pH, ammonia, nitrite; do 50% weekly water changes.
• Add aeration if absent.

Larger tanks often resolve buoyancy issues by improving water quality and reducing stress.