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Spotfin Butterflyfish (Chaetodon ocellatus)

Find Spotfin 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.

Spotfin Butterflyfish
Photo: James St. John · CC BY 2.0
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Where to buy Spotfin 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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    Search Amazon
  • Petco

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    Search Petco

About Spotfin Butterflyfish

A yellowish-white butterflyfish with a distinctive black spot (ocellus) on the dorsal fin near the tail, from which it derives its common name. The body is compressed and rhomboid-shaped with yellow markings on the head and body, and a black-edged bar passing through the eye.

Key facts

Reef safety
Reef Safe with Caution
Temperament
Semi Aggressive
Appearance
A yellowish-white butterflyfish with a distinctive black spot (ocellus) on the dorsal fin near the tail, from which it derives its common name. The body is compressed and rhomboid-shaped with yellow markings on the head and body, and a black-edged bar passing through the eye.
Aka
Mariposa Perla Amarilla
Min tank size
75 gallons
Difficulty Level
Spotfin Butterflyfish are moderately difficult; they require well-established aquaria with stable water conditions, may be selective feeders, and can be somewhat aggressive toward conspecifics and similar species.
Care Requirements
• Minimum 75 gallon tank for a single fish; larger if keeping pairs or groups • Temperature range 72–78°F, salinity 1.020–1.025 SG, pH 8.1–8.3 • Requires a mature reef or FOWLR aquarium with plenty of live rock for hiding and grazing • Feeds on small crustaceans, zooplankton, and some algae; offer varied foods 2–3 times daily • Can be aggressive toward other butterflyfish and similar species; house singly unless paired from a young age
Feeding Schedule
2-3 times daily
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Family
Chaetodontidae
Care Level
Moderate
Origin
Western Atlantic, from Florida and Bermuda south through the Caribbean to Brazil, including the Gulf of Mexico.

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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