The Large Titan Triggerfish (Balistoides viridescens) is one of the most recognisable and impressive triggerfish species available to marine aquarists. Known for its striking pattern and bold behaviour, this species is best suited for experienced hobbyists due to its size and temperament.
Care Level: Moderate to advanced. Requires a well-established aquarium with stable water parameters.
Temperament: Territorial and aggressive, especially towards smaller or slow-moving tankmates. Best kept singly or with robust, similarly sized species.
Diet: Omnivorous. Feeds on a varied diet including meaty foods such as crustaceans, molluscs, and prepared marine fish foods. Supplement with vegetable matter to ensure balanced nutrition.
Minimum Tank Size: At least 300 litres (approximately 80 gallons) to provide ample swimming space and territory.
Reef Safety: No. This species is known to nip at corals and invertebrates, making it unsuitable for reef aquariums.
Lighting and Water Flow: Standard marine aquarium lighting and moderate water flow are suitable. Ensure good water quality with efficient filtration.
Placement: Provide plenty of rockwork and hiding places to mimic natural reef crevices. This helps reduce stress and territorial aggression.
Origin: Indo-Pacific region, including the Red Sea and Great Barrier Reef.
Maximum Size: Up to 60 cm (24 inches) in length.
Due to their size and temperament, Large Titan Triggerfish are best housed in species-specific or large community tanks with caution. Regular monitoring and careful selection of tankmates are essential to maintain harmony.

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