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Bluestriped Butterflyfish (Chaetodon fremblii)

Find Bluestriped 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.

Bluestriped Butterflyfish
Photo: JCVD100 · CC BY-SA 2.0
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Where to buy Bluestriped 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 Bluestriped Butterflyfish

The Bluestriped Butterflyfish features a bright yellow body with distinctive electric-blue stripes running vertically across its sides. It has a black face mask extending from the snout through the eye, and a characteristic black spot near the dorsal fin base. The body shape is compressed and oval, typical of the butterflyfish family.

Key facts

Feeding Schedule
2-3 times daily
Diet
omnivore
Difficulty Level
Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
Reef safety
Reef Safe with Caution
Care Requirements
• Minimum 75 gallon tank with plenty of live rock for shelter and grazing. • Maintain temperature 72–78 °F, pH 8.1–8.3, and salinity 1.020–1.025 SG. • Provide varied meaty foods (mysis shrimp, brine shrimp, small crustaceans) plus quality flakes; feed 2-3 times daily. • Generally peaceful but may nip at coral polyps and some invertebrates, particularly in smaller tanks. • Acclimate slowly and provide excellent water quality; prone to parasitic infections if stressed.
Appearance
The Bluestriped Butterflyfish features a bright yellow body with distinctive electric-blue stripes running vertically across its sides. It has a black face mask extending from the snout through the eye, and a characteristic black spot near the dorsal fin base. The body shape is compressed and oval, typical of the butterflyfish family.
Min tank size
75 gallons
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Max Size
5.5
Care Level
Moderate
Family
Chaetodontidae
Common Health Issues
Ich, marine velvet, parasitic infections, loss of appetite

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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