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Chestnut Blenny (Cirripectes castaneus)

Find Chestnut Blenny 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.

Chestnut Blenny
Photo: R Vasconcellos · CC BY 4.0
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Where to buy Chestnut Blenny

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 Chestnut Blenny

The Chestnut Blenny is a small, elongated fish with a chestnut-brown to reddish-brown coloration throughout the body. It has a blunt head, small scales, and a continuous dorsal fin running along the back. The body tapers toward the tail, and it features small cirri (tentacle-like structures) above the eyes—a characteristic feature of the Cirripectes genus.

Key facts

Diet Details
Feed a varied diet of high-quality herbivorous pellets, marine flakes, and small meaty foods such as mysis shrimp and frozen copepods. This species grazes on algae and detritus but benefits from supplemental feeding of both plant and animal matter 2–3 times daily.
Diet
omnivore
Feeding Schedule
2-3 times daily
Common Health Issues
Marine ich, Fin rot, Swim bladder disorder, Bacterial septicaemia, Velvet disease
Aka
Chestnut Eyelash-Blenny
Origin
Indo-Pacific region, including the Great Barrier Reef, Indonesia, and surrounding areas. Found on coral and rocky reefs in shallow coastal waters.
Care Requirements
• Tank: 30+ gallons, 30"L minimum (pairs need larger) • Water: 72–78°F, SG 1.020–1.025, pH 8.1–8.3, strong flow • Diet: Omnivorous; algae-rich foods, mysis, spirulina, seaweed • Setup: Live rock, caves, and algae grazing surfaces essential • Behavior: Territorial; house singly or established pairs only
Max Size
5.5
Care Level
Moderate
Min tank size
30 gallons
Family
Blenniidae
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025

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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