Copperband Butterflyfish
Chelmon rostratus
Reef Compatible – With Caution
Care Level – Intermediate
Disposition – Peaceful
Min. Tank Size – 50 gallons
Mature Size – 8 inches
Specifications
| Feature | Detail |
|---|---|
| Size (Adult) | 8 inches |
| Min. Tank Size | 50 gallons |
| Compatibility | Reef compatible with caution |
| Difficulty Level | Intermediate |
| Behavior | Peaceful |
FAQ
Is the Copperband Butterflyfish safe to keep with corals?
It is reef compatible with caution. Some corals may be targeted, especially soft corals or polyps. Monitor closely during the first few weeks.
What is the expected growth rate of this fish?
The fish reaches a mature size of 8 inches. Growth rate varies by tank conditions, but it typically grows steadily over 12 to 18 months.
Can this fish be kept in a community tank with other fish?
Yes, it is peaceful and can coexist with non-aggressive species. Avoid keeping with small, fast-moving fish that may be seen as prey.




Sam Lee –
The fish is active and colorful. I’ve kept it in a 55-gallon tank with other reef species. It’s peaceful and doesn’t damage corals, though I noticed it occasionally nips at soft polyps. Overall, a good addition to a well-maintained reef setup.
Amelia Wright –
It’s a beautiful fish with a striking copper band. I’ve had it for six months and it’s thriving. I keep a close eye on it to avoid any coral interaction, but it hasn’t caused any issues so far.
Boris Nolan –
Great color and behavior. The fish is calm and doesn’t stress other tank inhabitants. Only minor concern is its occasional interest in soft corals, which I manage by positioning them carefully.