
Source: Wikimedia Commons
Cyphastrea serailia
A merulinid reef coral whose small corallites stand as low knobs scattered over the skeleton surface. Called the lesser knob coral in English, it forms encrusting to hemispherical colonies and is widespread across the Indo-Pacific.
Cyphastrea serailia, the lesser knob coral, is a reef-building merulinid coral described by Forsskal in 1775. The distribution records held by WoRMS run from the Red Sea, East Africa, Kenya, Mozambique, Mauritius, the Seychelles, the Maldives and Chagos to Indonesia, the Philippines, Papua New Guinea, the Marshall Islands and Australia. Colonies range from encrusting sheets over rock to hemispherical mounds, and the genus is recognised by its small corallites, which stand out as low knobs scattered across the skeleton surface. Colonies are usually brown or green, sometimes with the corallites a contrasting colour. It grows well under moderate light and moderate flow and is reasonably fast-growing, so it is treated as a hardy beginner stony coral, though it encrusts outwards and will overgrow neighbours, so it needs room. As a scleractinian it is on CITES Appendix II.
Source: Wikipedia (CC BY-SA 4.0)
The Cyphastrea Serailia grows to Colonies from about 10 cm to several tens of cm.
The ideal temperature for the Cyphastrea Serailia is 24〜27℃.
Origin
Red Sea, East Africa and Kenya through the Indian Ocean to Indonesia, the Philippines, Papua New Guinea, the Marshall Islands and Australia
Size
Colonies from about 10 cm to several tens of cm
Temperature
24〜27℃
Sources: LiveAquaria / AlgaeBarn: Calcium Supplementation / WoRMS (World Register of Marine Species)
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Cyphastrea serailia (Forskål, 1775)
Synonyms: Cyphastraea serailia (Forskål, 1775), Madrepora serailia Forskål, 1775
Authority databases: WoRMS
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendix II (Scleractinia spp. listed as an order)
Regulations may change. Always verify the latest information with the relevant authorities.
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Mainly nutrition from symbiotic zooxanthellae, supplemented with fine particulate coral foods offered at night.
LiveAquaria gives moderate lighting for this group of brain corals. Reduce the light at first and raise it to the target position over several weeks.
Medium flow. It encrusts outwards and will overgrow its neighbours, so mount it on its own rock or give it room to spread.
Water 24-26C, specific gravity 1.023-1.025, salinity 33-35 ppt, KH 8-12. It consumes calcium and magnesium, so test and replenish them regularly.
Most of its nutrition comes from its zooxanthellae. The corallites are small, so feed only small amounts of fine particulate coral food after lights-out.
Several congeners have similarly sized and shaped corallites, so accurate identification needs a look at the skeleton. As a scleractinian it is on CITES Appendix II and international trade requires permits.
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Cyphastrea Serailia is 24〜27℃. Avoid sudden temperature changes and maintain a stable environment.
Cyphastrea Serailia typically reaches Colonies from about 10 cm to several tens of cm as an adult. Size may vary depending on care conditions and individual genetics.
Cyphastrea Serailia feeds on: Mainly nutrition from symbiotic zooxanthellae, supplemented with fine particulate coral foods offered at night.. Aim for a balanced diet with appropriate feeding frequency.
The price of Cyphastrea Serailia varies significantly depending on variety, size, and individual quality. Check our market price page for the latest pricing information.
Last updated: September 16, 2026