Black Butterfly Tail

Black Butterfly Tail key facts

Care level

Intermediate

Lifespan

10-15 years

Size

12-20cm

Temperature

15〜28℃

Diet

Prepared foods, frozen bloodworms, colour-enhancing food

Lighting

The breed is enjoyed from above for the spread of its tail, so provide enough light to show the tail outline from the surface. Avoid overly strong light to hold the black, and pair this with colour-enhancing food.

Housing

A still tank or a water bowl is recommended so the tail is not damaged. Strong aeration disturbs its swimming and drains its stamina, so keep aeration to a minimum.

Tank Mates

It does not suit fast-swimming companions; the usual pairing is with equally slow Chinese breeds such as the celestial eye or bubble eye. Choose tank mates that will not peck its protruding eyes.

Notes

Black is the colour that fades most readily, turning white or red as it goes. To keep it, feed colour-enhancing food consistently and avoid sudden changes in water quality.

About Black Butterfly Tail

Black Butterfly Tail is a jet-black Chinese goldfish with a butterfly-shaped tail, best viewed from above. Its slow swimming and color-fading tendency suit intermediate keepers.

7 things to know before welcoming a Black Butterfly Tail

1. 1Best Kept for Top-Down Viewing

   The tail's beauty shows best when viewed from directly above, so a shallow tank or a wide water-lily bowl with an open water surface suits this breed well. A deep tank viewed only from the side won't fully showcase its distinctive shape.

2. 2Black Coloration Can Change

   The jet-black coloring can fade as the fish grows or depending on its environment. A color shift isn't necessarily a sign of illness, but if you want to preserve the deep black look, it helps to keep an eye on water quality and lighting conditions.

3. 3Protruding Eyes Need Care

   Because the eyes protrude like those of telescope-eye goldfish, tank decorations and filter edges should be arranged to avoid injury from bumping. Keeping the layout simple and free of sharp-edged ornaments is a safer approach.

4. 4Provide Calm, Gentle Currents

   Since it swims slowly, strong filter currents or tankmates that swim briskly can cause stress and fatigue. Gentle water flow and pairing with other slow-swimming goldfish varieties work best.

5. 5Suited to Intermediate Keepers

   Due to its body shape and eye structure, this variety calls for some experience with water quality management and daily observation, making it better suited to intermediate keepers. Having a foundation in basic goldfish care will make ongoing care much smoother.

6. 6Prepare the Tank Before Arrival

   Before bringing one home, prepare a tank with enough space for proper acclimation and stable water conditions. Sudden environmental changes can affect its health, so cycling the tank in advance and stabilizing temperature and water quality beforehand matters.

7. 7Rewarding Even Kept Alone

   Its calm temperament means it can be thoroughly enjoyed even when kept alone. If housing it with tankmates, choosing other slow-moving goldfish varieties helps maintain compatibility and a low-stress environment.

Frequently asked questions about Black Butterfly Tail

Q.Can beginners keep a Black Butterfly Tail?

A.Black Butterfly Tail is generally considered suited to intermediate keepers. Its body shape and eye structure call for some care in water quality management, so it's best approached after gaining experience with basic goldfish keeping.

Q.Does the black coloring fade over time?

A.Yes, this lineage is known for being prone to color fading. Coloration can shift depending on growth stage and environment, so it's worth simply observing the change as part of ownership.

Q.Why is it best viewed from above?

A.The butterfly-tail's distinctive fin spreads open like a butterfly's wings when viewed from directly above as it swims near the surface. A shallow tank or bowl for top-down viewing brings out this feature far more than a typical side-view aquarium.

Q.Can it be housed with other goldfish?

A.Because it swims slowly, it pairs well with other calm, slow-swimming goldfish. Housing it with fast-moving fish can cause stress and fatigue, so choose tankmates carefully.

Q.Are there any legal registrations required to keep one?

A.Black Butterfly Tail is not subject to CITES. It falls outside that international trade regulation framework.

Useful tools for Black Butterfly Tail care

Learn more about Black Butterfly Tail in the encyclopedia

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