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Acropora Crab (Hoplophrys oatesii)

Find Acropora Crab 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 invertebrate listings before you buy.

Acropora Crab
Photo: (c) Jim Greenfield, all rights reserved, uploaded by Jim Greenfield
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Where to buy Acropora Crab

ReefDock searches the following reef retailers for this invertebrate. 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 Acropora Crab

Small crab, typically 0.5–1 inch across, with a flattened body. Coloration ranges from brownish to reddish with white or cream-colored markings; the carapace is slightly hairy and often camouflaged to match the host coral.

Key facts

Type
Crab
Appearance Description
Small crab, typically 0.5–1 inch across, with a flattened body. Coloration ranges from brownish to reddish with white or cream-colored markings; the carapace is slightly hairy and often camouflaged to match the host coral.
Category
Crab
Origin
Indo-Pacific coral reef regions, primarily found in the Red Sea and Indo-Pacific from East Africa to Indonesia.
Diet Details
Opportunistic feeder consuming small crustaceans, zooplankton, and organic detritus. Rarely needs supplemental feeding in established reef systems with adequate microfauna.
Max Size
1.2
Compatibility
Generally peaceful with corals and fish, though may nip at polyps. Best kept as solitary specimen; can be territorial with other crabs.
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
Family
Xanthidae
Notes
• Minimum 20 gallon tank • Maintain temperature 72–78°F and salinity 1.023–1.025 • Requires healthy Acropora colonies as obligate hosts; cannot survive long without them • Feed small amounts of mysis shrimp or small pellets multiple times weekly • Provide excellent water flow and quality; monitor for predatory fish that may consume them
Care Level
Moderate
Min tank size
20 gallons

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell invertebrates directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current invertebrates 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 invertebrate listings — so you can see the conditions a invertebrate was raised in before you buy. Log this invertebrate on Reef Trak.

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