Source: Wikimedia Commons
Open Brain Coral
IntermediateTrachyphyllia geoffroyi
LPS coral with vivid colors and large mouth. Kept on sand bed. Responds exceptionally well to feeding.
Difficulty
Intermediate
Temperature
24〜27℃
Lifespan
10+ years with proper care
Diet
Photosynthesis + regular feeding essential
About
Open brain coral (Trachyphyllia geoffroyi, family Merulinidae) is the sole species of its genus—a free-living solitary coral whose upper surface bears maze-like ridges in spectacular fluorescent reds, greens, blues, and oranges. Found throughout the Indo-Pacific on sandy substrates and reef slopes, adults are not attached to the substrate. In aquaria, it is placed directly on the sand bed under low to moderate lighting (100–200 PAR) with gentle flow. Daily expansion indicates good health; it should be target-fed small meaty foods one to two times per week to sustain its vibrant coloration and growth.
Source: Wikipedia (CC BY-SA 4.0)
Basic Info
Origin
sandy substrates and reef slopes throughout the Indo-Pacific
Lifespan
10+ years with proper care
Temperature
24〜27℃
Diet
Photosynthesis + regular feeding essential
Care Guide
Lighting
Low to moderate
Flow
Gentle flow
Placement
Place directly on sand — do not attach to rock
Care Specifications
- Carbonate (KH)
- 8–12 dKH
- Water Temp.
- 24–27℃
- Specific Gravity
- 1.023–1.025
- Salinity
- 33–35 ppt
- Calcium (Ca)
- 400–450 ppm
- Magnesium (Mg)
- 1280–1350 ppm
LPSLight: Medium (PAR 50-150)Flow: LowPlacement: Bottom
Sources: AlgaeBarn: SPS/LPS care (PAR/flow) / AlgaeBarn: Water Parameters 101
References & Sources
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Taxonomy & Authority
Regulations & Conservation Status
CITES 附属書II
イシサンゴ目(Trachyphyllia geoffroyi, Merulinidae)=オオバナサンゴ。CITES 附属書II。
Sources: DOC NZ / CITES-listed corals (Scleractinia spp. = App. II)
Regulations may change. Always verify the latest information with the relevant authorities.
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