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Blackfin Squirrelfish (Holocentrus blackfin)

Find Blackfin Squirrelfish 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.

Blackfin Squirrelfish
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Where to buy Blackfin Squirrelfish

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 Blackfin Squirrelfish

The Blackfin Squirrelfish has a robust, deep-bodied form with bright red coloration on the head and body, accented by dark red or black bands. The dorsal fin is characteristically spiny with bold red and white stripes, and the pectoral fins display dark tips. Large eyes are typical of nocturnal squirrelfishes.

Key facts

Care Requirements
• Minimum 75 gallon tank with plenty of rockwork and caves for daytime shelter • Temperature range: 72–78°F; pH range: 8.1–8.3; Salinity: 1.020–1.025 SG • Nocturnal; may hide during the day and become more active at dusk and night • Requires meaty foods and can be competitive feeders; feed 1–2 times daily • Generally peaceful but may prey on very small fish or crustaceans
Difficulty Level
Moderate - Blackfin Squirrelfish requires standard marine aquarium maintenance and intermediate fish keeping skills.
Family
Holocentridae
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Feeding Schedule
1-2 times daily
Care Level
Moderate
Reef safety
Reef Safe with Caution
Appearance
The Blackfin Squirrelfish has a robust, deep-bodied form with bright red coloration on the head and body, accented by dark red or black bands. The dorsal fin is characteristically spiny with bold red and white stripes, and the pectoral fins display dark tips. Large eyes are typical of nocturnal squirrelfishes.
Temperament
Peaceful
Min tank size
75 gallons
Diet
carnivore
Origin
Western Atlantic, including the Bahamas, Caribbean Sea, and Gulf of Mexico, from Bermuda south to Brazil.

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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