The Blackmoor Fantail Goldfish (Carassius auratus var.) is one of the most distinctive and beloved fancy goldfish varieties, instantly recognisable by its velvety jet-black colouration and large, protruding telescope eyes. The flowing double fantail fins add further elegance to this striking fish, creating a slow-moving, graceful display that is both dramatic and captivating. A classic choice for fancy goldfish enthusiasts, the Blackmoor is best kept in a species-appropriate setup with other slow-moving fancy goldfish varieties.
Care Guide
Tank Size: Minimum 120L for one or two fish; fancy goldfish are heavy waste producers — robust filtration is essential
Water Parameters: pH 7.0–8.0 | Temp 18–24°C | Prefers cool, well-oxygenated water; avoid high temperatures
Diet: Omnivorous — sinking goldfish pellets or gel food preferred to reduce air ingestion; supplement with blanched vegetables, daphnia, and bloodworm; avoid floating foods where possible
Temperament: Peaceful; best kept with other fancy goldfish of similar size and swimming ability — avoid housing with fast-moving fish or single-tailed goldfish
Tank Setup: Smooth substrate (sand or rounded gravel) to protect delicate eyes and fins; avoid sharp décor; good filtration and regular water changes essential
