Balistapus undulatus
Reef Compatible: Yes
Care Level: Intermediate
Disposition: Aggressive
Min. Tank Size: 50 gallons
Mature Size: 12 inches
| Size | Range |
|---|---|
| S | 1″ to 2″ |
FAQ
Is this fish suitable for a reef tank?
Yes, this species is reef compatible, but it is aggressive and may pose a threat to smaller invertebrates. Careful tank planning is required.
What is the recommended tank size for this fish?
A minimum tank size of 50 gallons is required to provide adequate space and stability.
How big does this fish grow in maturity?
The mature size of this fish is up to 12 inches.

Victor Skinner –
I bought this triggerfish for my 50-gallon reef tank. It’s aggressive and needs a strong setup with plenty of hiding spots. It’s not for beginners. After a few weeks, it started eating small corals, so I added more rock structures. Still, it’s a bold addition to the tank.
Peter Graham –
The fish arrived healthy and grew quickly. I noticed it was active and territorial. I had to remove a small anemone after a few days. It’s not ideal for a mixed community. Good for experienced aquarists with a large tank.
Leonard Nash –
This fish is a striking addition to my tank. It’s active and keeps the tank lively. I made sure to keep it with larger, robust fish and avoid small invertebrates. It’s aggressive but manageable with proper setup.