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Blue-Lipped Bristletooth (Ctenochaetus cyanocheilus)

Find Blue-Lipped Bristletooth across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

Blue-Lipped Bristletooth
Photo: Rickard Zerpe · CC BY 2.0
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Where to buy Blue-Lipped Bristletooth

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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  • Amazon

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  • Petco

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About Blue-Lipped Bristletooth

A small surgeonfish with a dark brown to olive body and distinctive bright blue lips and mouth area that give this species its common name. The body is slightly compressed laterally with small, brush-like teeth adapted for grazing on algae. Adults typically reach 5–7 inches in the aquarium.

Key facts

Temperament
Peaceful
Origin
Indo-Pacific from the Great Barrier Reef, Indonesia, and Philippines westward through Micronesia and Polynesia to Hawaii. Found in coral reef environments, typically at depths of 5–50 meters.
Diet Details
Feed high-quality marine algae sheets (nori), vegetable-based flake and pellet foods, and occasional blanched vegetables. Provide grazing opportunities by maintaining healthy algae growth on rocks, and supplement with dedicated herbivore pellets 2–3 times daily.
Reef safety
Reef Safe
Common Health Issues
Marine ich, lateral line erosion (often linked to poor nutrition or water quality), head and lateral line erosion (HLLE), fin rot
Appearance
A small surgeonfish with a dark brown to olive body and distinctive bright blue lips and mouth area that give this species its common name. The body is slightly compressed laterally with small, brush-like teeth adapted for grazing on algae. Adults typically reach 5–7 inches in the aquarium.
Care Level
Moderate
Family
Acanthuridae
Min tank size
75 gallons
Difficulty Level
Moderate care required. This tang is generally hardy and peaceful but demands excellent water quality, stable conditions (72–78 °F, 1.023–1.025 SG, pH 8.1–8.3), and ample grazing material. A minimum 75-gallon tank is needed; larger aquariums are preferable to maintain stable water chemistry and algae production.
Diet
herbivore
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell fish directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current fish listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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