Aquarium Fish

Rectangular Triggerfish

posted: 05/15/12
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Rectangular Triggerfish
Courtesy of Drs. Foster and Smith
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The Rectangular Triggerfish, also known as the Humu Rectangle Triggerfish, Wedge-tailed Trigger, or the V-line Humuhumu, has a pearly white face and two blue and black stripes across the eyes. It is also recognized by the black V-pattern outlined in yellow that highlights the posterior section of the body.

The Rectangular Triggerfish needs a 75 gallon or larger aquarium with rocks and caves. It may rearrange the landscaping and rocks. It vocalizes using a "grunting" sound.

It's diet should include meaty foods such as whole shrimp, krill, squid, clams, and small fish.

As with other triggerfish, caution is required with: Dwarf Angelfish, Large Angelfish, Anthias, Blennies, Boxfish, Butterflyfish, Clownfish, Damselfish, Eels, Goatfish, Gobies, Groupers, Grunts & Sweetlips, Hawkfish, Hogfish, Lionfish & Scorpionfish, Parrotfish, Puffers, Squirrelfish, Tangs & Surgeons, Triggerfish and Wrasse.

They are not compatible with: Anglers & Frogfish, Basslets, Batfish, Cardinalfish, Filefish, Pseudochromis, Seahorses & Pipefish and Sharks & Rays.

Fish Facts

Name: Rectangular Triggerfish (Rhinecanthus rectangulus)

Family: Balistidae

Range: Indo-Pacific

Size: Up to 12 inches

Diet: Carnivore

Tank Set-up: Marine: Coral or rock, plants

Reef Compatible: With caution

Tank Conditions: 72-78°F; sg 1.020-1.025; pH 8.1-8.4

Minimum Tank Capacity: 75 gallon

Light: Medium

Temperament: Aggressive

Swimming Level: No specific level

Care Level: Easy

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