Masked Heniochus Butterflyfish
Heniochus monoceros
Reef Compatible – With Caution
Care Level – Beginner
Disposition – Peaceful
Min. Tank Size – 150 gallons
Mature Size – 9 inches
Specifications
| Feature | Detail |
|---|---|
| Species | Heniochus monoceros |
| Size (Adult) | Up to 9 inches |
| Minimum Tank Size | 150 gallons |
| Reef Compatibility | With caution |
| Difficulty Level | Beginner |
| Behavior | Peaceful |
FAQ
Is the Masked Heniochus Butterflyfish safe to keep with other reef fish?
It can coexist with other reef fish, but caution is advised due to its potential to nip at soft corals or polyps. Monitor interactions closely.
What is the expected growth rate of this butterflyfish?
The fish grows slowly and reaches a mature size of up to 9 inches over several years.
Can this fish be kept in a tank smaller than 150 gallons?
Please contact customer service


Elizabeth Coleman –
Easy to care for and very peaceful in a 150-gallon reef tank. It doesn’t bother other fish and shows interest in algae. Only needs occasional feeding and regular water checks. A great addition to a beginner’s setup.
David Hodges –
The fish is active and colorful. It’s not aggressive and stays calm around other fish. I noticed it occasionally grazes on algae, which helps with tank cleanliness. Needs a large tank though, and I’m happy with the size it reached after a year.
Christian Mitchell –
Perfect for a beginner reef keeper. It’s peaceful, doesn’t damage corals, and looks stunning in the tank. I’ve had it for six months and it’s thriving. Only thing to note is it needs a stable environment with good water parameters.