The Black Moor Goldfish is a unique and beloved variety of fancy goldfish, known for its velvety black color and telescope-like eyes. It's a popular choice among aquarists for its...
The Black Moor Goldfish is a unique and beloved variety of fancy goldfish, known for its velvety black color and telescope-like eyes. It's a popular choice among aquarists for its graceful swimming, distinct appearance, and peaceful temperament.
| Feature | Details |
|---|---|
| Scientific Name | Carassius auratus |
| Common Name | Black Moor Goldfish |
| Origin | China (descended from telescope goldfish) |
| Type | Fancy Goldfish |
| Lifespan | 10ā15 years (up to 20 with ideal care) |
| Adult Size | 6ā8 inches (15ā20 cm) |
| Best for | Indoor aquariums |
Color: Velvety deep black (may fade with age or poor water quality)
Body Shape: Rounded, egg-shaped body
Eyes: Protruding "telescope" or "dragon" eyes (slow to develop in juveniles)
Fins: Flowing double tail (fan-shaped or veil tail)
Other Variants: Sometimes develop bronze or orange highlights as they age
Note: Their eyesight is poor due to protruding eyesākeep with similar fish.
| Parameter | Ideal Range |
|---|---|
| Tank Size | Minimum 20ā30 gallons for one fish |
| Water Temperature | 65ā75°F (18ā24°C) |
| pH Range | 6.5ā7.5 |
| Water Hardness | 5ā19 dGH |
| Filtration | Strong filter, low current |
| DƩcor | Soft-edged decorations, smooth gravel or sand |
| Plants | Live or silk (avoid sharp plastic) |
Lighting: Moderate; strong light may stress them due to poor vision.
Temperament: Peaceful, calm, social
Swimming Style: Graceful but slow due to body shape and vision
Tank Level: Mid-to-bottom dwellers
Best Tankmates:
Other fancy goldfish (e.g., Oranda, Fantail, Ryukin)
Avoid fast single-tailed types (like Comets or Shubunkins)
Type: Omnivore
Diet Options:
Sinking pellets/flakes made for goldfish
Blanched veggies: peas (deshelled), spinach, zucchini
Protein treats: bloodworms, daphnia, brine shrimp (live or frozen)
Feeding Tip: Feed 2ā3 times daily in small amounts; avoid floating pellets to prevent gulping air and swim bladder issues.
| Common Issues | Prevention/Treatment |
|---|---|
| Swim Bladder Disease | Soak pellets; include fibrous veggies |
| Ich (white spots) | Quarantine new fish; raise temp & salt |
| Fin Rot | Maintain clean water; use antibacterial meds |
| Cloudy Eyes/Injuries | Keep tank clean; remove sharp objects |
Lifespan: 10ā15 years; longer with excellent care
Spawning Type: Egg scatterer
Sex Differences:
Males may develop white breeding tubercles on gill plates
Females become rounder when gravid
Spawning Setup:
Separate tank with fine-leaf plants or spawning mops
Spawning triggered by warmer water and longer light exposure
Post-Spawning: Adults should be removed to avoid egg-eating
Fry Feeding: Start with infusoria or liquid fry food, then baby brine shrimp
| Pros | Cons |
|---|---|
| Beautiful velvety black color | Color may fade with age or poor conditions |
| Peaceful and easygoing | Prone to vision problems and injuries |
| Good for beginners with proper tank size | Not suitable with fast or aggressive fish |
| Long lifespan | Needs stable, clean water and soft dƩcor |
Avoid strong currentsāBlack Moors are slow and get pushed around easily.
Choose gentle tankmates that wonāt outcompete them at feeding time.
Monitor water quality regularlyāfancy goldfish are sensitive to ammonia and nitrites.
Give them enough spaceātheyāre large-bodied and need room to swim.
| Category | Info |
|---|---|
| Size | 6ā8 inches |
| Lifespan | 10ā15 years |
| Temperament | Peaceful, slow swimmer |
| Tank Size | 30 gal minimum |
| Water Temp | 65ā75°F (18ā24°C) |
| Best Tankmates | Fancy goldfish (Oranda, Fantail) |
| Diet | Omnivorous, needs variety |
| Breeding | Egg scatterer, spring triggers |