Eight Band Butterflyfish (Chaetodon octofasciatus)
Reef compatible, suitable for intermediate aquarists. This peaceful species is ideal for marine aquariums with proper conditions.
Key Features:
- Reef compatible – does not harm coral or invertebrates
- Care level – intermediate
- Disposition – peaceful
- Minimum tank size – 30 gallons
- Mature size – 4.5 inches
| Specification | Detail |
|---|---|
| Size (adult) | 4.5 inches |
| Size (product) | XL (5″ to 6″) |
| Species | Chaetodon octofasciatus |
| Compatibility | Reef-safe |
| Behavior | Peaceful |
FAQ
Is the eight band butterflyfish safe to keep with corals?
Yes, the eight band butterflyfish is reef compatible and does not harm corals or invertebrates.
What is the typical mature size of this fish?
The mature size of the eight band butterflyfish is approximately 4.5 inches.
What tank size is required for this fish?
A minimum tank size of 30 gallons is recommended.

Jasmine Russell –
The butterflyfish arrived healthy and active. It has adapted well to our 40-gallon tank with live rock and corals. It’s peaceful and doesn’t show signs of stress. Great addition to a reef setup.
Hannah Rees –
We’ve had this fish for three months now. It’s active and curious, and it doesn’t bother the other fish or corals. The size is slightly larger than expected, but it’s still within the mature range.
Jason Taylor –
Easy to care for and very calm. We didn’t have to adjust water parameters much. It’s a beautiful addition to our reef tank and looks vibrant every day.