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Redtail Butterflyfish (Chaetodon collare)

Find Redtail 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.

Redtail Butterflyfish
Photo: Diego Delso · CC BY-SA 4.0
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Where to buy Redtail 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 Redtail Butterflyfish

Chaetodon collare is a yellow and white butterflyfish with distinctive black markings. The head is predominantly white with a black vertical band through the eye, and the body transitions to pale yellow on the flanks. A prominent red or orange-red tail (caudal fin) gives this species its common name, contrasting sharply with the pale body coloration.

Key facts

Feeding Schedule
2-3 times daily
Origin
Indo-Pacific region, including the Red Sea, East Africa, and extending to the Indo-Malaysian Archipelago and Philippines. Occurs in coastal reef environments from shallow reefs to approximately 80 meters depth.
Max Size
7
Diet Details
In captivity, feed a varied diet of high-quality meaty foods including mysis shrimp, brine shrimp, and finely chopped fish flesh, supplemented with vegetable matter such as nori or spirulina-based preparations. Feed 2-3 times daily in smaller portions.
Temperament
Peaceful
Min tank size
70 gallons
Difficulty Level
Chaetodon collare is moderately difficult to keep. While hardy once acclimated, it can be a selective feeder initially and requires stable water conditions. Success depends on proper acclimatization, varied diet, and adequate tank size.
Appearance
Chaetodon collare is a yellow and white butterflyfish with distinctive black markings. The head is predominantly white with a black vertical band through the eye, and the body transitions to pale yellow on the flanks. A prominent red or orange-red tail (caudal fin) gives this species its common name, contrasting sharply with the pale body coloration.
Care Level
Moderate
Care Requirements
• Minimum 75-gallon aquarium; adults need 100+ gallons • Water: 72-78°F, pH 8.1-8.3, SG 1.020-1.025 • Reef-safe; prefers coral-rich environment with hiding spots • Feed varied diet: mysis shrimp, copepods, small meaty foods daily • Moderately hardy; can be aggressive toward similar butterflyfish species
Common Health Issues
Parasitic infections (ich, marine velvet), bacterial infections, nutritional deficiencies, feeding refusal in newly imported specimens
Diet
omnivore

Looking for a hobbyist seller?

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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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