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Blackpatch Triggerfish

Family: Balistidae Picture of a Blackpatch TriggerfishRhinecanthus verrucosus

   The Blackpatch Triggerfish fish is very easily identified because, as the name states, it has a black patch on the middle lower part of its' body.

   This fish is quite attractive with streaks of blue, yellow and red adorning a body that goes from grayish brown on top to a whitish lower half.

   Like all triggerfish, the Blackpatch Triggerfishill need lots of room. They are best house with other larger, protein eaters such as groupers, surgeonfishes, basses, and eels and puffers that can hold their own. Be sure it has a shelter where it can retreat to and spend the night.

For more Information on keeping this fish see:
Guide to a Happy, Healthy Marine Aquarium

Geographic Distribution
Rhinecanthus verrucosus
Data provided by
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Tetraodontiformes
  • Family: Balistidae
  • Genus: Rhinecanthus
  • Species: verrucosus
Blackpatch Triggerfish, Bursa Trigger, Rhinecanthus verrucosus

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Blackpatch Triggerfish in captivity

As you watch this elegantly marked Blackpatch or Bursa Triggerfish swim back and forth, it becomes obvious as to why they need a large tank! They are very active and they are easy to keep, however, a tank that is 125 gallons is necessary for this eventually 1 foot long pet fish. These fish are interesting to say the least! They will make grunting sounds and love to rearrange rocks and landscaping in the tank, but need other aggressive tank mates. Provide hard shelled shrimp to wear their teeth down, which continue to grow throughout their lives.

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Maintenance difficulty:    The Blackpatch Triggerfish is easy to keep. Triggers are among the hardiest of all marine fish.

Maintenance:    Feed all kinds of live, frozen, and flake foods. Best to feed small amounts several times a day. We generally feed squid, shrimp (the same kind people eat), mussels, and all kinds of chopped up fish.

Habitat: Natural geographic location:    Blackpatch Triggerfish are found in the Indo-West Pacific: in tropical waters, from Chagos Archipelago through Indonesia to the Solomon Islands, north to southern Japan, south to Vanuatu. These fish inhabit subtidal reef flats and protected lagoons. They are found mainly in rubble-algal habitat and usually in loose aggregations. This is a shy species, usually swimming away or diving into holes.

Foods:    All kinds of meaty foods including crustaceans, molluscs, and fish.

Social Behaviors:    Can be aggressive towards members of its own species and fish that are the same size.

Sex: Sexual differences:    Unknown.

Light: Recommended light levels:    No special requirements.

Breeding/Reproduction:    Unknown.

Temperature:    No special requirements.

Length/Diameter of fish:    Blackpatch Triggerfish adults can grow to 30 cm (12 inches).

Minimum Tank Length/Size:    A minimum 60 gallon aquarium is recommended.

Water Movement: Weak, Moderate, Strong    No special requirements.

Water Region: Top, Middle, Bottom    No special requirements.

Availability:    This fish is generally readily available.

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