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Bluespine Unicornfish (Naso unicornis)

Find Bluespine Unicornfish 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.

Bluespine Unicornfish
Photo: Brian Gratwicke · CC BY 3.0
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Where to buy Bluespine Unicornfish

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

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Bluespine Unicornfish

A large, streamlined tang with a blue-gray body, yellow caudal fin, and a distinctive long, pointed bony horn (rostral projection) extending from the forehead. Venomous spines along the caudal peduncle are edged in bright blue.

Key facts

Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Diet
omnivore
Feeding Schedule
Feed 2-3 times daily
Max Size
24
Aka
Blue-Spine Nosefish, Long-Snouted Nosefish, Blue-Spine Unicornfish, Long-Snouted Unicornfish
Care Requirements
• Minimum 180 gallon tank • Requires strong water flow and excellent water quality • Temperature range 72–78°F; pH 8.1–8.3; Salinity 1.020–1.025 • Aggressive and highly active; should be one of the last fish added; may quarrel with other tangs • Feed high-quality marine herbivore pellets, algae sheets, and occasional meaty foods 2–3 times daily
Appearance
A large, streamlined tang with a blue-gray body, yellow caudal fin, and a distinctive long, pointed bony horn (rostral projection) extending from the forehead. Venomous spines along the caudal peduncle are edged in bright blue.
Common Health Issues
Marine ich, Fin rot, Swim bladder disorder, Hole in the head disease, Bacterial septicemia
Diet Details
Zooplankton, small fish, marine algae, seaweed, brine shrimp, mysis shrimp
Origin
Indo-Pacific from the Red Sea and East Africa to Hawaii and the central Pacific.
Reef safety
Not Reef Safe
Temperament
Semi Aggressive

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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