Cephalopholis polleni
Reef Compatible – With Caution
Care Level – Intermediate
Disposition – Aggressive
Min. Tank Size – 100 gallons
Mature Size – 17 inches
Size Information
| Size | Range |
|---|---|
| M | 2″ to 3″ |
FAQ
Is this fish suitable for a reef tank?
This fish is reef compatible with caution due to its aggressive disposition and potential to damage corals.
What is the recommended tank size for this species?
A minimum tank size of 100 gallons is required to properly accommodate this fish.
How big does this fish grow when mature?
The mature size of this fish is up to 17 inches.


Christopher Buckland –
I bought this grouper for my 100-gallon reef tank. It’s aggressive and needs space, but it’s active and adds visual interest. I had to remove a few corals initially, but now it’s settled. Good for experienced aquarists.
Anna Ferguson –
The fish arrived healthy and grew steadily in size. I noticed it occasionally nips at soft polyps, so I added more robust corals. It’s not for beginners, but it’s a striking addition to a larger tank.
Amy Robertson –
After a few months, the grouper has become a dominant presence in the tank. I’ve had to adjust my coral placement carefully. It’s a bold choice, but worth it for a dynamic display.