Blackwedged Butterflyfish (Chaetodon ulietensis)
Reef compatible, suitable for intermediate aquarium keepers. This peaceful species is ideal for marine setups with proper conditions.
Key Details:
- Care Level: Intermediate
- Disposition: Peaceful
- Minimum Tank Size: 75 gallons
- Mature Size: 6 inches
- Compatibility: Reef-safe
| Specification | Value |
|---|---|
| Size (Adult) | 6 inches |
| Minimum Tank Size | 75 gallons |
| Reef Compatibility | Yes |
| Behavior | Peaceful |
| Origin | Indo-Pacific |
FAQ
Is the blackwedged butterflyfish suitable for a small tank?
No, a minimum tank size of 75 gallons is required for proper health and behavior.
Does this fish eat coral or damage reef structures?
No, the blackwedged butterflyfish is reef compatible and does not damage coral.
What is the expected growth rate of this fish?
The fish reaches a mature size of 6 inches over time, typically within 12 to 18 months in a stable environment.


Nathan Nolan –
The blackwedged butterflyfish has been thriving in my 75-gallon reef tank for over six months. It’s active but calm, and doesn’t show any signs of aggression. The fish enjoys the live rock and small algae patches. Easy to spot and maintain. A great addition to a peaceful reef setup.
Ava Edmunds –
I bought this fish for my intermediate reef tank. It’s peaceful and doesn’t stress other fish. I’ve noticed it spends time near the back wall, grazing on algae. Needs a stable environment, but once established, it’s a happy fish.
Nathan Churchill –
After a few weeks, the butterflyfish settled in well. It’s not aggressive and doesn’t eat coral. The tank has been stable, and the fish looks vibrant. I appreciate the clear care instructions provided.