Bubble Eye Goldfish (Carassius auratus var. Bubble Eye) Care Guide
One of the most unusual fancy goldfish, featuring large fluid-filled sacs beneath upward-pointing eyes.
Overview
Carassius auratus var. Bubble Eye is a species in the family Cyprinidae. One of the most unusual fancy goldfish, featuring large fluid-filled sacs beneath upward-pointing eyes. The fragile bubbles can be punctured by sharp decorations, so the tank must be free of any rough surfaces. No dorsal fin. Extremely poor swimmer.
Taxonomy
- Family: Cyprinidae
- Genus: Carassius
- Scientific name: Carassius auratus var. Bubble Eye
- Origin: East Asia
Habitat
The bubble eye is a dorsal-finless fancy goldfish (Carassius auratus) with large fluid-filled sacs beneath the eyes. Bred from domesticated East Asian stock, it is delicate and slow-swimming; the fragile sacs require a hazard-free tank and gentle tankmates.
Tank requirements
- Minimum tank volume: 150 L
- Temperature: 18-24 °C
- pH: 6.5-8
- GH: 5-20 °dGH
- Water flow: low
- Adult size: 10-15 cm
- Lifespan: 8-12 years
- Difficulty: advanced
Diet
Classified as omnivore. Recommended feeding frequency: 2x daily. In captivity, offer a varied diet appropriate to the species — quality prepared foods supplemented with frozen or live items of suitable size.
Compatibility
- Temperament: peaceful
- Position in tank: middle
- Compatible tank mates: Another Bubble Eye, Another Fancy Goldfish
- Avoid with: Fast Swimmers, Aggressive Fish, Sharp Decorations
Breeding
- Breeding strategy: egg-scatterer
- Breeding difficulty: advanced