Melon Butterflyfish (Chaetodon ornatissimus)
Reef compatible, suitable for intermediate aquarists. This peaceful fish is ideal for marine aquariums with proper conditions.
Key Features:
- Reef compatible – does not harm coral
- Care level – intermediate
- Disposition – peaceful
- Minimum tank size – 50 gallons
- Mature size – 7 inches
| Size | Range |
|---|---|
| Melon Butterflyfish | 2.5″ to 3″ (in mature stage) |
FAQ
Is the Melon Butterflyfish safe to keep with corals?
Yes, the Melon Butterflyfish is reef compatible and does not harm coral.
What is the recommended tank size for this fish?
A minimum tank size of 50 gallons is required.
How long does it take for this fish to reach maturity?
The Melon Butterflyfish typically reaches a mature size of 7 inches over several months.



Sam Short –
The Melon Butterflyfish is a beautiful addition to my 50-gallon reef tank. It’s peaceful and doesn’t bother the corals. After a few months, it grew to about 3 inches and looks vibrant. Easy to spot in the tank and very active during the day.
Katherine Scott –
I’ve had this fish for six months now. It’s calm and doesn’t stress the other fish. The tank size is sufficient, and it’s a great choice for intermediate reef keepers. Just make sure the water parameters are stable.
Stephanie Wright –
The fish arrived healthy and has been thriving in my tank. It’s active but not aggressive. I appreciate that it’s reef-safe and doesn’t eat coral. A solid pick for a colorful, peaceful addition.