
Source: Wikimedia Commons
Clown triggerfish
Large triggerfish with white polka dots and yellow mouth. Very aggressive toward other fish. Popular as a personality fish.
The clown triggerfish (Balistoides conspicillum) is a large triggerfish of the family Balistidae native to tropical coral reefs of the Indian and Pacific Oceans. Its dramatic markings — large white polka dots on a dark belly, a vivid yellow-orange mouth, and bright spots on the dorsal surface — give it a flamboyant, jester-like appearance that inspired its common name. Adults can exceed 50 cm in length, requiring a tank of 300 litres or more. Highly aggressive, it will bite and damage virtually any fish, crustacean, or piece of live rock it encounters; solitary keeping is strongly recommended. Its powerful jaws are adapted for crushing molluscs and crustaceans in the wild, but it also accepts prepared aquarium foods readily. Despite its belligerence toward tankmates, it often develops a recognizable, individual personality with its keeper.
Source: Wikipedia (CC BY-SA 4.0)
Origin
Tropical coral reefs of the Indian and Pacific Oceans
Lifespan
10-20 years
Size
25-40cm
Temperature
23〜26℃
Shrimp, shellfish, squid, pellets
300L+. Solo keeping recommended
Sources: LiveAquaria
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Sources: CITES Appendices (species not listed) / 環境省 特定動物リスト / 環境省 特定外来生物等一覧
Regulations may change. Always verify the latest information with the relevant authorities.
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Very aggressive but bonds with owner
Loves crustaceans. Very powerful teeth
Almost impossible. Attacks even same-sized fish
Watch for biting. Destroys equipment in tank
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Clown Triggerfish is 23〜26℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Clown Triggerfish is 10-20 years. With proper care and nutrition, they can live a long and healthy life.
Clown Triggerfish typically reaches 25-40cm as an adult. Size may vary depending on care conditions and individual genetics.
Clown Triggerfish feeds on: Shrimp, shellfish, squid, pellets. Aim for a balanced diet with appropriate feeding frequency.
The price of Clown Triggerfish varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 23, 2026