Copperband Butterflyfish (Chelmon rostratus)
Reef Compatible – With Caution
Care Level: Intermediate
Disposition: Peaceful
Min. Tank Size: 50 gallons
Mature Size: 8 inches
| Size | Available |
|---|---|
| Tiny (1″ or below) | Yes |
FAQ
Is this fish suitable for a reef tank?
This butterflyfish is reef compatible with caution. It may eat certain corals or polyps, so careful monitoring is required.
What is the minimum tank size recommended for this fish?
A minimum tank size of 50 gallons is recommended to ensure proper growth and stability.
How big does this fish grow in maturity?
The mature size of this fish is up to 8 inches.




Ava Bailey –
I added a tiny copperband butterflyfish to my 55-gallon reef tank. It’s peaceful and has been active in the middle zone. I keep an eye on it for any coral interaction, but so far it’s not causing issues. Good choice for intermediate reef keepers.
Rose Henderson –
The fish arrived healthy and stayed calm. I noticed it occasionally nips at soft corals, so I’ve moved it slightly away. Overall, it’s a good addition to a well-maintained tank.
Phil Nolan –
This small butterflyfish has been thriving in my 60-gallon tank. It’s active and doesn’t seem to harm any of the invertebrates. I appreciate the clear size specification—helpful for planning.