Undulated Triggerfish

The Undulated Triggerfish, *Balistapus undulatus*, is a striking and active species known for its bold personality and vibrant coloration. Its body is primarily a deep green to brown, adorned with bright orange to yellow wavy lines that run horizontally along its flanks. A prominent orange stripe extends from the mouth to the pectoral fin, and the fins are often edged in orange or yellow.

A minimum tank size of 180 gallons is recommended for this species due to its potential size and active nature. The aquarium should be equipped with plenty of live rock and sturdy decorations to provide hiding places and territories. Undulated Triggerfish are known for rearranging aquarium décor, so ensure all structures are secure. They are not suitable for reef aquariums as they will nip at and consume invertebrates, including corals, crustaceans, and mollusks.

Distinguishing between male and female Undulated Triggerfish is difficult based on external appearance. Breeding in captivity is not common.

The diet of the Undulated Triggerfish should be varied and include a mix of meaty foods. Offerings such as chopped seafood (shrimp, squid, fish), frozen preparations for carnivores, and high-quality pellets or flakes are readily accepted. They have strong teeth and jaws, capable of crushing shells, so providing occasional hard-shelled prey like crabs or snails can help maintain their dental health. In a home aquarium, they can reach a size of up to 12 inches.

Quick Facts

• Scientific Name: Balistapus undulatus
• Care Level: Intermediate
• Temperament: Aggressive
• Diet: Carnivore
• Reef Compatibility: Not Reef Safe
• Region of Origin: Indo-Pacific
• Maximum Adult Size: 12"
• Recommended Tank Size: 250 gallons