Zanclus cornutus
Reef Compatible – With Caution
Care Level – Expert-only
Disposition – Peaceful
Min. Tank Size – 100 gallons
Mature Size – 9 inches
Product Specifications
| Feature | Detail |
|---|---|
| Species | Zanclus cornutus |
| Size | XXXL / 7 inches and above |
| Compatibility | Reef compatible with caution |
| Difficulty Level | Expert-only |
| Behavior | Peaceful |
| Minimum Tank Size | 100 gallons |
| Mature Size | Up to 9 inches |
FAQ
Is this fish suitable for a beginner aquarium keeper?
No, this species requires expert-level care and is not recommended for beginner aquarists.
Can this fish coexist with other reef inhabitants?
It is reef compatible with caution. Careful selection of tank mates is required to avoid aggression or predation.
What is the expected mature size of this fish?
The mature size of this fish is up to 9 inches.

Virginia Wright –
I’ve kept this Moorish Idol for over six months in a 120-gallon reef tank. It’s peaceful and active, though it does require stable water parameters. I’ve had to monitor water chemistry closely. The fish is beautiful and adds a unique presence to the tank.
Jake Young –
The fish arrived healthy and has been thriving in my 100-gallon tank. I’ve had to avoid aggressive species, but it’s a great addition to a well-maintained reef setup.
Richard Sharp –
It’s a striking fish, but I noticed it’s more sensitive than expected. Water changes and stable temperatures are essential. Not for small or untrained tanks.