Here’s a care guide for the Blue Jigsaw Triggerfish (Xanthichthys auromarginatus) — also known as the Blue Throat Trigger or Blue Jaw Trigger, depending on sex and colour variation.
 
 
 
 
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Overview
 
 
Scientific name: Xanthichthys auromarginatus
Common names: Blue Jigsaw Trigger, Blue Throat Trigger, Blue Jaw Trigger
Origin: Indo-Pacific Ocean
Adult size: Up to 25–30 cm (10–12 in)
Lifespan: Around 8–12 years
Temperament: Semi-aggressive (one of the calmer triggers)
 
 
 
 
 
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Tank Requirements
 
 
Minimum tank size: 400–500 litres (90–120 gallons) for a single adult
Aquascape: Plenty of rockwork with caves and swim space
Substrate: Sand or fine gravel
Lighting: Standard marine lighting
Flow: Moderate to strong circulation
 
 
 
 
 
⚖️ 
Water Parameters
 
 
Temperature: 24–27 °C (75–81 °F)
pH: 8.1–8.4
Salinity: 1.020–1.025 SG
Nitrate: < 20 ppm
Ammonia/Nitrite: 0 ppm
 
 
 
 
 
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Diet
 
 
Blue Jigsaw Triggers are carnivores. Feed a varied meaty diet such as:
 
Mysis shrimp
Krill
Chopped squid or clam
Marine fish flesh
Quality marine pellets for carnivores
 
 
🦀 Include hard-shelled foods (e.g. cockle, crab, mussel) to help wear down their teeth.
 
Feed once or twice daily, only as much as they consume in a few minutes.
 
 
 
 
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Compatibility
 
 
Temperament: One of the more peaceful triggers, but may bully smaller fish.
Tankmates: Larger, semi-aggressive species (tangs, angels, wrasses, other large reef fish).
Reef safety: Generally reef-safe with caution — they rarely bother corals but may eat crustaceans or ornamental shrimp.
Avoid: Small gobies, ornamental shrimp, slow fish.
 
 
 
 
 
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Additional Notes
 
 
Males have a distinct blue throat and stronger colouration; females are duller.
Can be shy at first — provide caves or overhangs for security.
Known for intelligent and curious behaviour.