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Finescale Triggerfish (Balistes polylepis)

Find Finescale 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.

Finescale Triggerfish
Photo: Davefoc · CC BY-SA 3.0
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Where to buy Finescale Triggerfish

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

  • Saltwaterfish

    Search this retailer

    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Finescale Triggerfish

The Finescale Triggerfish displays a robust, compressed body with fine, intricate scaling that gives the species its common name. Coloration is typically greenish-gray to brownish with a pattern of small spots or reticulations. Like all triggerfishes, it possesses the characteristic anterior dorsal spine that locks into place, and a stout, blunt-nosed head.

Key facts

Family
Balistidae
Care Requirements
• 180+ gallon tank minimum (aggressive, territorial behavior) • Temp 72-78°F, pH 8.1-8.3, SG 1.020-1.025 • Strong flow, plenty of live rock for hiding • Feed varied diet: meaty foods, crustaceans, quality pellets • Aggressive predator—house singly or with large, hardy fish only
Max Size
10
Min tank size
180 gallons
Aka
Cochi
Common Health Issues
Ich, dental overgrowth, injury from aggressive behavior, parasitic infections
Care Level
Hard
Reef safety
Not Reef Safe
Temperament
Aggressive
Diet
carnivore
Difficulty Level
The Finescale Triggerfish is challenging due to its aggressive territorial behavior, specialized cooler-water requirements (68–76°F), and tendency to damage tank décor and injure tankmates. It is best suited to experienced aquarists with large, species-specific setups.
Diet Details
Feed a varied carnivorous diet including high-quality meaty foods such as mysis shrimp, krill, squid, and small crustaceans. Also accepts some prepared marine foods formulated for carnivorous fish.

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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