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Yellow-Tail Butterflyfish (Chaetodon xanthurus)

Find Yellow-Tail Butterflyfish 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.

Yellow-Tail Butterflyfish
Photo: Rickard Zerpe · CC BY 2.0
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Where to buy Yellow-Tail Butterflyfish

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 Yellow-Tail Butterflyfish

The Yellow-Tail Butterflyfish features a bright yellow tail fin and yellow pelvic fins, which are its distinguishing marks. The body is predominantly white to pale gray with distinctive black diagonal bands or stripes running across the head and body, and a characteristic black blotch near the dorsal fin base. The fish exhibits the classic butterflyfish body shape: deep, laterally compressed, and elongated.

Key facts

Water Parameters
Temperature: 72-82°F pH: 8.1-8.3 Salinity: 1.02-1.025
Diet
omnivore
Care Requirements
• Minimum 75 gallon tank for a single specimen • Maintain temperature 72–82°F and salinity 1.020–1.025 SG • pH range 8.1–8.3 • Feed a varied diet of high-quality prepared foods, frozen mysis shrimp, and enriched brine shrimp 2–3 times daily • Provide live rock and coral branches for grazing and shelter; the species naturally feeds on small crustaceans, algae, and coral polyps
Feeding Schedule
2-3 times daily
Max Size
5.5
Common Health Issues
Marine ich (white spot disease), fin rot, parasitic infections, nutritional deficiencies
Appearance
The Yellow-Tail Butterflyfish features a bright yellow tail fin and yellow pelvic fins, which are its distinguishing marks. The body is predominantly white to pale gray with distinctive black diagonal bands or stripes running across the head and body, and a characteristic black blotch near the dorsal fin base. The fish exhibits the classic butterflyfish body shape: deep, laterally compressed, and elongated.
Diet Details
In the aquarium, offer high-quality frozen mysis shrimp, enriched brine shrimp, and small prepared foods formulated for butterflyfish. Supplement with occasional herbivorous foods. Feed 2–3 times daily in small portions to account for their natural grazing behavior.
Origin
Indo-Pacific region from the Red Sea and East Africa east to the Hawaiian Islands and the Great Barrier Reef. Found in reef environments at depths typically between 10 and 80 meters.
Reef safety
Reef Safe with Caution
Temperament
Peaceful
Min tank size
75 gallons

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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