
Source: Wikimedia Commons
Ctenochaetus tominiensis
A small bristletooth from the western central Pacific, yellowish-brown with a white tail and broad yellow margins at the rear of the dorsal and anal fins. It grazes algae and the microfauna among them.
Ctenochaetus tominiensis, the Tomini surgeonfish or orangetip bristletooth, was described in 1955 from the Gulf of Tomini, Sulawesi. It occurs in the western central Pacific, including Indonesia, the Philippines, Palau, Papua New Guinea, the Solomons, Vanuatu, Fiji and the northern Great Barrier Reef (FishBase, Wikipedia), reaching 16 cm SL. It is yellowish-brown with a white tail and broad yellow margins to the dorsal and anal fins, whose angular rear tips are unique in the genus. The tail is forked in juveniles and lunate in adults. It lives singly or in small groups on steep, coral-rich drop-offs, feeding on algae and the microfauna among them. A congener of the Kole and chevron tangs, it is sold by Japanese marine specialist shops as a small, aquarium-friendly tang.
Source: Wikipedia (CC BY-SA 4.0)
The Tomini surgeonfish grows to Up to 16 cm SL (FishBase).
The ideal temperature for the Tomini surgeonfish is 24〜27℃.
Origin
Western central Pacific (Indonesia, Philippines, Palau, Melanesia, Fiji)
Lifespan
Few reliable data
Size
Up to 16 cm SL (FishBase)
Temperature
24〜27℃
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.
Primary sources
Not listed in the CITES Appendices (checked on Species+). Not a designated invasive alien species in Japan. Never release aquarium fish into the sea.
Sources: Species+ (CITES) / FishBase
Regulations may change. Always verify the latest information with the relevant authorities.
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Mainly herbivorous (algal film, algae-based prepared foods)
24-27°C (FishBase). Keep water well oxygenated and stable.
Small for a tang but active, so give swimming space. It grazes algal film on rocks, so a tank with plenty of live rock suits it.
Fairly peaceful, but may squabble with congeners and similarly shaped fish.
Feeds on algae and associated microfauna and leaves corals and invertebrates alone; considered reef-safe.
Besides grazing rock surfaces, give algae-rich prepared foods, dried seaweed and some frozen foods.
It has a small spine at the tail base; handle with care.
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 Tomini surgeonfish is 24〜27℃. Avoid sudden temperature changes and maintain a stable environment.
Tomini surgeonfish typically reaches Up to 16 cm SL (FishBase) as an adult. Size may vary depending on care conditions and individual genetics.
Tomini surgeonfish feeds on: Mainly herbivorous (algal film, algae-based prepared foods). Aim for a balanced diet with appropriate feeding frequency.
The price of Tomini surgeonfish varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 28, 2026