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Suggested Tank
300+ gallons
Max Size
22 inches
Difficulty
Temperament
Description
A heavy-bodied Indo-Pacific trigger whose juveniles are tan-to-yellow with a dazzling network of electric blue scribbles and wavy lines; adults darken to brown-blue with yellow-spotted scales and yellow-to-blue fin margins, and keep bright green eyes. Aggressive and boisterous, it bullies smaller or similarly shaped tankmates, blows out sand, rearranges rockwork, and will bite airline, tubing, and even heaters. Strictly a very large FOWLR animal: 300 gallons or more with wide swimming room, secure aquascaping, strong flow, and heavy mechanical/biological filtration to handle a messy meaty diet.
Reef Safe
No
Environment
Blueline Triggerfish prefer a large tank with plenty of hiding places and room to swim. They are hardy and adaptable, but they do best in a well-maintained tank with stable conditions.
Behavior
The Blueline Triggerfish is known for its territorial and aggressive behavior. It can be aggressive towards other fish, especially those of the same species or smaller size. It is not recommended for beginner aquarists due to its potential aggression and large size.
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Owner Reviews
Christian
@Christian27484
If you have a FOWLR large enough I’d say the blueline trigger is one of if not the most gorgeous in its species. They are known to be one of the nastiest triggers as well so be careful with tank mates. They are not suitable for reefs as they may eat beneficial inverts and use stony corals as chew toys.
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Blueline Triggerfish
Pseudobalistes fuscus
