Where to buy Oneknife Unicornfish
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About Oneknife Unicornfish
A large, elongated tang with a silvery-gray body and a distinctive knife-like compressed shape. Characterized by a prominent frontal protuberance (horn or knob) on the forehead, particularly pronounced in males, and subtle bluish or greenish iridescence on the gill covers.
Key facts
- Difficulty Level
- Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
- Diet Details
- Naturally feeds on benthic algae and small invertebrates. In captivity, offer large daily feedings of high-quality herbivorous pellets, dried seaweed (nori), and regular meaty foods including small pieces of fish, shrimp, and occasional live copepods. Supplement with vitamin-enriched preparations.
- Reef safety
- Not Reef Safe
- Care Level
- Expert
- Diet
- omnivore
- Temperament
- Semi Aggressive
- Care Requirements
- • Large tank minimum 250 gallons; prefers 250+ for sustained health • Stable water: pH 8.1–8.3, SG 1.020–1.025, temp 72–78°F • Strong water flow and excellent filtration essential • Varied diet: high-quality pellets, frozen meaty foods, nori sheets • May nip at corals and smaller fish; best in species-specific or large FOWLR setup
- Common Health Issues
- Marine Ich, Fin Rot, Swim Bladder Disorder, Bacterial Infections, Fungal Diseases
- Origin
- Indo-Pacific from Indonesia and Philippines eastward through Micronesia and Polynesia.
- Appearance
- A large, elongated tang with a silvery-gray body and a distinctive knife-like compressed shape. Characterized by a prominent frontal protuberance (horn or knob) on the forehead, particularly pronounced in males, and subtle bluish or greenish iridescence on the gill covers.
- Feeding Schedule
- 2-3 times daily
- Max Size
- 28
Research before you buy
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