Clown Grouper (Pogonoperca punctata)
Reef Compatible – With Caution
Care Level – Easy
Disposition – Aggressive
Min. Tank Size – 100 gallons
Mature Size – 14 inches
Size Information
| Size | Range |
|---|---|
| L | 5″ to 6″ |
FAQ
Is this clown grouper safe to keep with other reef fish?
This species is reef compatible with caution. It may attack smaller or slower-moving fish, so it is not recommended for tanks with delicate or small reef inhabitants.
What is the minimum tank size required for this fish?
A minimum tank size of 100 gallons is required to provide adequate space and stability for this species.
How aggressive is the clown grouper in a community tank?
The clown grouper is aggressive, especially as it matures. It should not be kept with other fish that are small or slow-moving.

Evan Morrison –
I bought this clown grouper for my 100-gallon reef tank. It’s active and curious, but I had to remove a few small fish that were too vulnerable. It’s not ideal for a mixed community, but it adds a bold presence. Feeding is easy and it stays healthy with regular meals.
Jessica Lee –
The fish arrived healthy and grew steadily in size. I noticed it occasionally nipping at smaller invertebrates, so I adjusted my tank setup to avoid those. It’s not for beginners, but it’s a striking addition to a larger tank.
Charles Underwood –
After a few months, the clown grouper has become a dominant figure in the tank. I keep it separate from small fish and it’s thriving. The size range matches the description, and it’s very active during the day.