
Source: Wikimedia Commons
Zoanthus sansibaricus
The representative Zoanthus of Japanese waters, forming extensive intertidal mats from the mainland coast to Okinawa. Its oral disc colour is exceptionally variable, and most Zoanthus sold for aquariums belong to this species.
Zoanthus sansibaricus is a zoantharian of the family Zoanthidae distributed across the Indo-Pacific. SeaLifeBase gives its depth range as 0-8 m, and it forms extensive mats over rock, its coenenchyme reinforced with incorporated sand, from the intertidal zone into shallow reef. In Japan it is common from the southern coast of Honshu to Okinawa and can be seen enduring exposure in tide pools. The polyps are about a centimetre across and the oral disc is exceptionally variable, with green, orange, pink and blue-green colour morphs all known. Most Zoanthus offered for aquariums belongs to this species. It is zooxanthellate and draws most of its nutrition from photosynthesis, though it also responds to liquid coral foods. It is hardy and spreads quickly, which makes it easy to keep but also means it creeps across rock and smothers neighbouring corals, so it needs room. Species in this order are known to carry palytoxin, so avoid handling it bare-handed when fragging. It is not listed in the CITES Appendices.
Source: Wikipedia (CC BY-SA 4.0)
The Zoanthus Sansibaricus grows to Polyps about 1cm across.
The ideal temperature for the Zoanthus Sansibaricus is 24〜27℃.
Origin
Indo-Pacific, on rocky shores and in the intertidal zone at depths of 0-8 m
Size
Polyps about 1cm across
Temperature
24〜27℃
Sources: SeaLifeBase (Zoanthus sansibaricus) / LiveAquaria (Colony Polyp, Zoanthus Corals) / AlgaeBarn: Water Parameters 101
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: Zoanthus sansibaricus Carlgren, 1900
Synonyms: Zoanthus zansibaricus Carlgren, 1900, Zoanthus cavernarum Pax & Müller, 1957, Zoanthus erythrochloros Pax & Müller, 1957
Authority databases: WoRMS
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendices (species not listed)
Regulations may change. Always verify the latest information with the relevant authorities.
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Mainly nutrition from symbiotic zooxanthellae, supplemented with liquid or powdered coral foods.
LiveAquaria lists moderate lighting. As an intertidal species it tolerates bright light, but colour is steadiest under moderate intensity in the aquarium; too much and the oral discs tend to stay closed.
Give moderate randomised flow and place it at mid-height on the rockwork. It creeps across rock and will smother neighbours, so leave space or keep it on an isolated rock.
Water 24-27C, specific gravity 1.023-1.025 (33-35 ppt), KH 8-12. Colour and spread are steadier with a trace of nutrients present than in ultra-low-nutrient water.
Most of its nutrition comes from photosynthesis. It also responds to liquid or powdered coral foods, which speed its spread, but it can be maintained without them.
Species in this group are known to carry palytoxin. Do not frag them bare-handed, and never treat colonised rock with boiling water or a pressure washer. Wear gloves and eye protection, and keep the fluid away from eyes and open cuts. It spreads vigorously and will overgrow neighbouring corals, so site it with care. It is not listed in the CITES Appendices.
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 Zoanthus Sansibaricus is 24〜27℃. Avoid sudden temperature changes and maintain a stable environment.
Zoanthus Sansibaricus typically reaches Polyps about 1cm across as an adult. Size may vary depending on care conditions and individual genetics.
Zoanthus Sansibaricus feeds on: Mainly nutrition from symbiotic zooxanthellae, supplemented with liquid or powdered coral foods.. Aim for a balanced diet with appropriate feeding frequency.
The price of Zoanthus Sansibaricus varies significantly depending on variety, size, and individual quality. Check our market price page for the latest pricing information.
Last updated: September 16, 2026