ReefDock
MarketplaceSellHow it worksFAQ
  1. Home
  2. /Shop
  3. /Livestock
  4. /Fish
  5. /Oval Butterflyfish

Oval Butterflyfish (Chaetodon lunulatus)

Find Oval 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.

Oval Butterflyfish
Photo: krokodiver · CC BY 2.0
Some retailer links may earn ReefDock a small commission at no extra cost to you. Learn more.

Where to buy Oval Butterflyfish

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

    Search this retailer

    Search Saltwaterfish
  • Amazon

    Search this retailer

    Search Amazon
  • Petco

    Search this retailer

    Search Petco

About Oval Butterflyfish

The Oval Butterflyfish has a compressed, laterally oval body with distinctive yellow and black coloration. The head and anterior body are bright yellow, while the posterior body and tail are predominantly black with a white or pale stripe marking the caudal peduncle. A characteristic black mask crosses the eye.

Key facts

Diet
omnivore
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.026
Care Requirements
• Minimum 75 gallon tank with well-established live rock and coral formations • Temperature range: 72–78°F • pH range: 8.1–8.3 • Salinity range: 1.020–1.026 SG • Feed 2–3 times daily with varied marine foods; offer frozen Mysis shrimp, quality flake foods, and small crustaceans • Provide hiding spots and stable water conditions; generally peaceful but may nip at stony corals and some soft corals if underfed
Feeding Schedule
2-3 times daily
Max Size
5.5
Temperament
Peaceful
Diet Details
In captivity, feed a varied diet of high-quality marine flake foods, frozen Mysis shrimp, small crustaceans, and occasionally vegetable matter. Feed 2-3 times daily in small portions that the fish can consume within a few minutes.
Origin
Indo-Pacific region, ranging from the Red Sea and East Africa through Indonesia to the Great Barrier Reef and the Indo-Australian Archipelago.
Reef safety
Reef Safe with Caution
Appearance
The Oval Butterflyfish has a compressed, laterally oval body with distinctive yellow and black coloration. The head and anterior body are bright yellow, while the posterior body and tail are predominantly black with a white or pale stripe marking the caudal peduncle. A characteristic black mask crosses the eye.
Common Health Issues
Marine ich, Fin rot, Swim bladder disorder, Hole-in-the-head disease, Velvet
Care Level
Moderate

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.

Related fish

  • Acares Midget Reef Chromis

    Chromis acares

  • Achilles Tang

    Acanthurus achilles

  • Adorned Wrasse

    Halichoeres cosmetus

  • African Basslet

    Liopropoma africanum

  • African Pygmy Angelfish

    Centropyge acanthops

  • Agile Chromis

    Chromis agilis

  • Aiptasia Eating Filefish

    Acreichthys tomentosus

  • Allard's Clownfish

    Amphiprion allardi

ReefDock

The reef marketplace built around live-arrival accountability. Sister app to Reef Trak.

Questions? support@reeftrak.com

Marketplace

  • Browse all listings
  • Auctions
  • Trades
  • Sell on ReefDock

Categories

  • Corals
  • Fish
  • Invertebrates
  • Equipment
  • Frags

About

  • How it works
  • Fees and payouts
  • About ReefDock
  • FAQ
  • ReefTrak integration
  • Marketplace rules
  • Affiliate disclosure

© 2026 ReefDock · Privacy · Terms