Blackwedged Butterflyfish (Chaetodon ulietensis)
Reef compatible, suitable for intermediate aquarium keepers. This peaceful species is ideal for a well-maintained marine environment.
Care level: Intermediate
Disposition: Peaceful
Minimum tank size: 75 gallons
Mature size: 6 inches
| Size | Range |
|---|---|
| M | 2″ to 3″ |
FAQ
Is the blackwedged butterflyfish compatible with other reef fish?
Yes, it is reef compatible and generally peaceful, making it suitable for cohabitation with many reef species when proper tank conditions are maintained.
What is the mature size of this butterflyfish?
The mature size is 6 inches.
What is the minimum tank size required for this fish?
A minimum tank size of 75 gallons is recommended.


Emma Berry –
The blackwedged butterflyfish has been thriving in my 100-gallon reef tank for six months. It’s active but not aggressive and blends well with other fish. Easy to spot and maintain with regular water changes.
Liam Langdon –
I added this butterflyfish to my intermediate reef setup. It’s calm and doesn’t stress other inhabitants. The size is within the expected range and it’s a beautiful addition to the tank.
Fiona Gill –
After a few weeks, the fish settled in well. It’s peaceful, doesn’t chase other fish, and has adapted to the lighting and water parameters. A great choice for reef hobbyists with some experience.