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Blackback Butterflyfish (Chaetodon melannotus)

Find Blackback Butterflyfish across reef-livestock retailers on ReefDock. Compare sources, check known pricing where available, and review care information before you buy.

Blackback Butterflyfish
Photo: Rickard Zerpe · CC BY 2.0
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Where to buy Blackback 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 Blackback Butterflyfish

The Blackback Butterflyfish is a small, disc-shaped fish with a predominantly white to pale yellow body marked by a distinctive black dorsal band running along the back and upper flank. It has a yellow-orange face and pectoral area, with thin black bands crossing the gill covers and eye. The fish displays the characteristic triangular profile and compressed body typical of butterflyfish.

Key facts

Reef safety
Not Reef Safe
Diet
omnivore
Feeding Schedule
2-3 times daily
Origin
Indo-Pacific region from the Red Sea and East Africa eastward to the Hawaiian Islands, Indonesia, and the Great Barrier Reef. Found on coral reef environments at depths of 10–50 meters.
Common Health Issues
Marine ich, parasitic infections, nutritional deficiencies, coral nipping, loss of appetite in new tank environments
Min tank size
70 gallons
Care Requirements
• Minimum 70 gallon tank for a single adult or bonded pair • Maintain temperature range 72–82°F with stable salinity 1.020–1.026 and pH 8.1–8.3 • Feed 2–3 times daily with a varied diet of small crustaceans, copepods, and quality prepared foods designed for butterflyfish • Provide abundant live rock and coral cover for grazing and shelter; this species picks continuously at small organisms and detritus • House with peaceful tank mates; avoid aggressive fish and predatory species; can be kept in bonded pairs • Perform regular water changes (25% monthly) to maintain water quality and reduce parasitic load
Max Size
5.5
Appearance
The Blackback Butterflyfish is a small, disc-shaped fish with a predominantly white to pale yellow body marked by a distinctive black dorsal band running along the back and upper flank. It has a yellow-orange face and pectoral area, with thin black bands crossing the gill covers and eye. The fish displays the characteristic triangular profile and compressed body typical of butterflyfish.
Difficulty Level
Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
Family
Chaetodontidae
Water Parameters
Temperature: 72-82°F pH: 8.1-8.3 Salinity: 1.02-1.026

Research before you buy

ReefDock is the sister app to Reef Trak. Use Reef Trak to research and log fish, keep tank parameters organized, and maintain a complete livestock history. Log this fish on Reef Trak.

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