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Mueller's Coralfish (Chelmon muelleri)

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

Mueller's Coralfish
Photo: (c) Nathan Litjens, all rights reserved, uploaded by Nathan Litjens
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Where to buy Mueller's Coralfish

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 Mueller's Coralfish

Mueller's Coralfish is a small, compressed butterflyfish with a distinctive black and white banded body pattern. The head and front body are predominantly yellow-orange with black vertical bars, while the rear body transitions to white with black striping. A prominent black eye-stripe and yellow facial markings are characteristic of this species.

Key facts

Care Requirements
• Minimum 75-gallon aquarium with stable conditions • Water parameters: pH 8.1–8.3, salinity 1.023–1.025, temp 74–78°F • Strong water flow (moderate-to-high) to replicate reef conditions • Live rock and coral rubble for grazing; select hardy soft/LPS corals • Feed small frozen foods (copepods, mysis shrimp) 2–3 times daily
Temperament
Peaceful
Care Level
Hard
Diet
corallivore
Difficulty Level
Mueller's Coralfish is challenging for most hobbyists due to its specialized corallivorous diet and feeding behavior. It requires a mature, well-established reef aquarium with abundant live coral polyps and can be destructive to stony and soft corals, making it unsuitable for coral-focused systems.
Diet Details
Mueller's Coralfish is primarily a corallivore and zooplankton feeder in the wild. In captivity, offer varied meaty foods including small frozen copepods, amphipods, mysis shrimp, and finely chopped seafood, supplemented with small pieces of coral food preparations. Feed 2–3 times daily in small portions.
Reef safety
Not Reef Safe
Min tank size
75 gallons
Family
Chaetodontidae
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Feeding Schedule
2-3 times daily
Max Size
5.5

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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