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紫紋皮革珊瑚(Leptastrea purpurea)© Eva DiDonato/NPS / Public domain

紫紋皮革珊瑚(Leptastrea purpurea)

Leptastrea, known in Japanese as "Ruri Sango," is an encrusting stony coral that spreads in a thin sheet across rock and live rock surfaces. Its English name, "crust coral," reflects this low, mat-like growth habit. Many colonies show a color that contrasts with the surrounding tissue at the center of each corallite, and the "orange eye" color variant built around this pattern is a well-known and popular form in the hobby. Considered suitable for intermediate keepers, Leptastrea rewards steady water quality and lighting with slow, gradual colony expansion over time. It's often used to bring color to awkward spots on rockwork — ledges, crevices, and vertical faces — where other corals struggle to establish.

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關於紫紋皮革珊瑚(Leptastrea purpurea)

Leptastrea is an encrusting stony coral that spreads across rock in a thin sheet. Known for the "orange eye" color variant with contrasting corallite centers, it's an intermediate-level species that slowly expands its colony over time.

迎接紫紋皮革珊瑚(Leptastrea purpurea)前需要了解的7件事

  1. 1Encrusting Growth Habit

    Leptastrea grows as a thin encrusting sheet across rock and live rock rather than forming upright branches. This makes it a natural fit for covering bare spots on your aquascape's base rock or rock sides.

  2. 2Intermediate-Level Care

    This species is generally recommended for keepers with some coral-keeping experience. A working understanding of water quality, lighting, and flow management helps keep colonies stable.

  3. 3The "Orange Eye" Variant

    Many colonies show a color at the center of each corallite that contrasts with the surrounding tissue, and the form where this stands out is known as "orange eye." The exact pattern and intensity vary from colony to colony, which is part of the appeal.

  4. 4Lighting and Flow Care

    Sudden changes in lighting or water flow can cause polyps to retract or become stressed. After introducing a new colony, start with moderate conditions and adjust light and flow gradually while watching how it responds.

  5. 5Placement Strategy

    Because it can spread across surfaces where other corals struggle to establish, such as rock sides and crevices, Leptastrea works well for filling awkward gaps in a layout. Leave enough space around it, though, since an expanding colony can eventually make contact with neighboring corals.

  6. 6Slow Colony Expansion

    Reaching a colony diameter of a dozen-plus centimeters takes time with this species. Day-to-day change is minimal, so it's best approached as a coral to enjoy for its gradual, long-term spread.

  7. 7Check Tank Stability First

    Before bringing one home, confirm that your tank's water parameters — temperature, salinity, pH, nutrients — are already stable. Since this is considered an intermediate-level species, it suits an established reef tank better than one that's just been set up.

紫紋皮革珊瑚(Leptastrea purpurea)的常見問題

Q.Is Leptastrea suitable for beginners?
A.This species is generally considered an intermediate-level coral. It's easiest to keep stable once you're already comfortable managing water quality and lighting.
Q.What does "orange eye" mean?
A.It's a common name for colonies where the center of each corallite shows a color that contrasts sharply with the surrounding tissue, a pattern frequently seen in Leptastrea. The exact color and extent vary from colony to colony.
Q.How large does it grow?
A.It spreads as an encrusting sheet and can reach a colony diameter of a dozen-plus centimeters. Growth is slow and gradual rather than sudden.
Q.Is it okay if it touches other corals?
A.Contact between corals can cause stress in some species, so it's best to leave room around it to account for future growth. Check on the colony's spread periodically.
Q.Is this species subject to CITES?
A.Leptastrea is not subject to CITES.

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