Balistapus undulatus
Reef Compatible: No
Care Level: Intermediate
Disposition: Aggressive
Min. Tank Size: 50 gallons
Mature Size: 12 inches
| Size | Range |
|---|---|
| M | 2″ to 3″ |
FAQ
Is this fish suitable for a reef tank?
No, this species is not reef compatible and may harm corals or other invertebrates.
What is the recommended tank size for this fish?
A minimum tank size of 50 gallons is required.
How aggressive is this fish?
This fish is aggressive and may attack other fish, especially smaller or slower-moving species.

Michael Morrison –
I bought this triggerfish for my 60-gallon tank. It’s active and territorial, so I had to keep it separated from smaller fish. It’s not reef-safe, which is clearly stated. Feeding it works well with frozen foods. It grows steadily and stays healthy with regular water changes.
Jan Martin –
The fish arrived healthy and fits well in my mid-sized tank. I noticed it’s quite aggressive and doesn’t tolerate other fish well. I’ve had to keep it in a corner with a few large fish. It’s not ideal for beginners due to its behavior.
Karen Harris –
After a few months, it’s grown to about 3 inches and is active in the tank. I’ve maintained good water parameters and it seems to be thriving. It doesn’t eat much but is always alert. I’d recommend it only for experienced aquarists with a large tank.