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Blue-Lined Triggerfish (Xanthichthys caeruleolineatus)

Find Blue-Lined Triggerfish across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

Blue-Lined Triggerfish
Photo: John E. Randall · CC BY-SA 4.0
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Where to buy Blue-Lined Triggerfish

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Blue-Lined Triggerfish

A compact, deep-bodied triggerfish with distinctive bright blue horizontal lines running across its yellow to olive-green body. It has a rounded head, small mouth, and characteristic trigger-like spines on its dorsal fin.

Key facts

Diet
carnivore
Diet Details
Feed a varied diet of high-quality carnivorous foods including marine flakes, pellets, mysis shrimp, and frozen foods. Offer food once daily or every other day; triggerfish are opportunistic feeders and prone to overeating.
Max Size
9
Min tank size
125 gallons
Care Level
Moderate
Common Health Issues
Marine Ich, Fin Rot, Swim Bladder Disorder, Bacterial Infections, Parasitic Infestations
Origin
Indo-Pacific region from the Red Sea and East Africa to Hawaii and the Great Barrier Reef, typically found at depths of 20–70 meters on coral reef slopes and outer reef areas.
Care Requirements
• 125 gallon tank minimum • Stable water params: 72-78°F, SG 1.020-1.025, pH 8.1-8.3 • Strong water flow and well-oxygenated environment • Varied diet: meaty foods, crustaceans, small fish • Aggressive toward other fish; keep singly or with very large peaceful species
Feeding Schedule
Every 1-2 days
Appearance
A compact, deep-bodied triggerfish with distinctive bright blue horizontal lines running across its yellow to olive-green body. It has a rounded head, small mouth, and characteristic trigger-like spines on its dorsal fin.
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Family
Balistidae

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell fish directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current fish listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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