Where to buy Barnacle
ReefDock searches the following reef retailers for this invertebrate. Click through to see the live price.
- Search Saltwaterfish
Saltwaterfish
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- Search Amazon
Amazon
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- Search Petco
Petco
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About Barnacle
Barnacles are small crustaceans with a volcano-like, cone-shaped calcareous shell (test) typically 0.5 to 2 inches tall, ranging in color from white, gray, or brownish to pale orange. They attach permanently to hard surfaces and extend feathery cirri (feeding appendages) when water currents flow over them.
Key facts
- Origin
- Cosmopolitan in marine environments worldwide, found in rocky intertidal and shallow reef zones across all oceans.
- Type
- Other
- Max Size
- 1
- Water Parameters
- Temperature: 68-82°F pH: 8-8.3 Salinity: 1.02-1.026
- Family
- Cirripedia
- Min tank size
- 20 gallons
- Diet Details
- Filter feeders that consume microscopic plankton, phytoplankton, and suspended organic particles from the water column. Often thrive in nutrient-rich or established systems with regular feeding schedules or natural food production.
- Appearance Description
- Barnacles are small crustaceans with a volcano-like, cone-shaped calcareous shell (test) typically 0.5 to 2 inches tall, ranging in color from white, gray, or brownish to pale orange. They attach permanently to hard surfaces and extend feathery cirri (feeding appendages) when water currents flow over them.
- Compatibility
- Barnacles are passive filter feeders that pose no threat to fish or invertebrates. Compatible with reef systems and community tanks where water movement is sufficient.
- Care Level
- Easy
- Category
- Filter Feeder
- Notes
- Photo needed: new livestock catalog expansion entry added on 2026-04-25. Usually arrives on live rock; long-term survival requires regular planktonic feeding. Photo candidate added via SearchAPI on 2026-04-25 from northwestnaturalist.org. Verify species match and usage rights before marking final.
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