Banded Butterfly

Chaetodon octofasciatus

(1 Reviews)

Banded Butterfly

Banded Butterfly

Chaetodon octofasciatus

(1 Reviews)

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Care Facts

Care Level: Moderate
Temperament: Peaceful
Diet: Omnivore
Reef Safe: No
Minimum Tank Size: 120 gallons
Max Size: 7 inches
The Banded Butterfly, Chaetodon octofasciatus, has a white body with vertical black bands and yellow edging along the fins and tail. They are hardy and peaceful and can be kept with other peaceful fish, but may become aggressive towards other Butterflies with a similar pattern or coloration in smaller tanks.

They are also not reef safe since they will nip at and eat soft corals and stony polyps as well as ornamental shrimp, tube worms and anemones. Diet should include a variety of mysis and vitamin enriched brine shrimp, spirulina, nori, seaweed, marine algae, and algae based foods, 2-3 times daily.

Banded Butterfly (Chaetodon octofasciatus) Care Guide

The Banded Butterfly (Chaetodon octofasciatus) is an alluring marine species commonly kept by saltwater aquarium enthusiasts. This product description provides essential information for hobbyists interested in successfully maintaining this species in their marine aquarium.

Habitat of Banded Butterfly

Banded Butterflies are native to the Indo-Pacific region, where they inhabit the warm, tropical waters of coral reefs. They are typically found in shallow lagoons and areas with abundant coral growth. Their natural habitat consists of clear, well-lit waters with many nooks and crannies for refuge.

Reef Compatibility of Banded Butterfly

This species is generally not considered reef-safe. Banded Butterflies are peaceful and unlikely to harm inhabitants. However, like many butterflyfish, they may nibble on soft corals and certain sessile invertebrates. Therefore, caution should be exercised when introducing them to a reef environment.

Size and Lifespan of Banded Butterfly

Banded Butterflies typically grow to a size of around 7 inches (15 centimeters) in captivity. They have a moderate lifespan, with proper care allowing them to thrive for 5-7 years.

Diet in Captivity

Banded Butterflies are primarily herbivores, feeding on a diet of coral polyps, algae, and small invertebrates in the wild. In captivity, they should be provided with a varied diet of high-quality frozen and dry foods designed explicitly for herbivorous fish. Supplements of live or frozen brine shrimp and mysis shrimp can benefit their overall health.

Aquaculture Availability

The Banded Butterfly is less commonly aquacultured than other species. However, the availability of aquacultured individuals may have increased since then. It's essential to check with reputable marine aquarium suppliers, such as, for the most up-to-date information.

Compatibility with Other Fish and Invertebrates

Banded Butterflies are generally peaceful fish but may become territorial towards their own kind. They are compatible with various other temperate fish species, such as angelfish, tangs, and wrasses. When it comes to invertebrates, exercise caution, as they might nibble on some soft corals and polyps.

Sexual Dimorphism

Banded Butterflies do not exhibit any noticeable sexual dimorphism, making it challenging to distinguish between males and females based on physical characteristics.

Juvenile to Adult Coloration Changes

The Banded Butterfly undergoes a striking transformation as it matures. Juveniles display a stunning pattern of bold black bands and vivid white stripes on a bright yellow background. As they grow, the black bands become thinner, and their body takes on a more muted coloration with less vibrant stripes.

Temperament of Banded Butterfly

Banded Butterflies are generally known for their peaceful disposition, making them an excellent addition to community aquariums. However, they can become territorial with their species if kept in too small of an aquarium.

Tank Requirements for Banded Butterfly

To keep the Banded Butterfly healthy and happy, providing them with a well-maintained aquarium is essential. A minimum tank size of 120 gallons is recommended to accommodate their swimming space and to ensure stable water conditions.

Water Conditions:

  • pH: Ideally maintained at a stable pH level between 8.1 and 8.4.
  • Salinity: Maintain a specific gravity between 1.020 and 1.025.
  • Water Temperature: Keep the water temperature in the range of 74-82°F (23-28°C).
  • Water Flow: Moderate water flow is ideal, mimicking the gentle current of a natural reef habitat.

Other Common Names of Banded Butterfly

The Banded Butterfly is also known as the Eight-Banded Butterflyfish due to its distinctive banding pattern.

Five Compatible Tank Mates:

Why Choose is your trusted source for procuring the Banded Butterfly. As a reputable online supplier, offers a wide selection of marine fish and invertebrates, all backed by a guarantee of high quality and excellent customer service. When you purchase the Banded Butterfly from, you can be confident that you are receiving a healthy specimen that has been carefully handled and shipped to your doorstep.

In conclusion, the Banded Butterfly (Chaetodon octofasciatus) is a captivating addition to saltwater marine aquariums, known for its peaceful temperament and striking juvenile coloration. Careful consideration of tank size, water conditions, and compatible tank mates is essential for successfully keeping this species. Purchasing from a reputable source like ensures you receive a healthy and well-cared-for specimen for your aquarium.

The Banded Butterfly was shipped extremely well, and it was a perfect addition to my reef tank. I acclimated according to the instructions, and I have had no problems with any of the fish I have received. What more can you ask for? Cheaper then my local fish store and it was delivered to my front door the next day.

Reviewed by: Jamison Tillar on Sept. 11, 2021

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