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Pearl Butterflyfish (Roa excelsa)

Find Pearl 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.

Pearl Butterflyfish
Photo: Daniela Scharffenberg Tyto de · CC BY-SA 3.0
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Where to buy Pearl Butterflyfish

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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  • Petco

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About Pearl Butterflyfish

Roa excelsa has an elongated, slender body, reaching up to 150 cm in length. It is primarily silver-gray in color, with a series of distinct black spots along its flanks. A unique feature is the presence of a wide, dark band across its upper caudal (tail) fin.

Key facts

Care Level
Expert
Care Requirements
• Minimum 200 gallon tank • 75-80°F temperature • pH 8.1-8.4 • High water flow • Live rock and sand substrate
Common Health Issues
Marine ich, Fin rot, Swim bladder disorder, Columnaris disease, Velvet disease
Temperament
Peaceful
Min tank size
200 gallons
Difficulty Level
Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
Appearance
Roa excelsa has an elongated, slender body, reaching up to 150 cm in length. It is primarily silver-gray in color, with a series of distinct black spots along its flanks. A unique feature is the presence of a wide, dark band across its upper caudal (tail) fin.
Diet Details
Zooplankton, small crustaceans (such as mysid shrimp), and fish eggs in both wild and aquarium environments.
Feeding Schedule
Feed 2-3 times daily
Origin
Roa excelsa is naturally found in the coastal waters of Western Australia, specifically within the Indian Ocean, primarily along the Ningaloo Reef and Coral Bay regions. The depth range for this species is typically between 10 to 45 meters.
Max Size
6
Water Parameters
Temperature: 75-80°F (24-27°C) pH: 8.0-8.4 Salinity: 1.021-1.025

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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