Crabs

The Sally Lightfoot Crab is a fast, active, and highly mobile marine crab commonly found in reef and saltwater aquariums. It is well known for its bright coloration, agility, and constant movement across rocks, glass, and aquarium surfaces. In nature, this species inhabits tropical and subtropical coastal regions, where it plays an important role in controlling algae and consuming organic detritus. Feeding & Behavior: Omnivorous scavenger feeding on algae and leftover food Helps clean live rock and aquarium glass surfaces Extremely active and fast-moving May hide among rocks when stressed or threatened Care Requirements: Stable, mature marine aquarium Plenty of live rock for grazing and shelter Supplemental feeding if algae is insufficient Peaceful tank environment preferred Important Notes: Very fast and can be difficult to catch May occasionally disturb small or weak tank inhabitants if underfed Generally reef safe but should be monitored in delicate setups Best suited for aquariums with compatible tank mates

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The Porcelain Anemone Crab is a beautiful and peaceful reef-safe invertebrate commonly found in marine aquariums. It is best known for its delicate appearance and its unique feeding behavior, where it filters food particles directly from the water using its fan-like front claws. In the wild, this crab is often found living in close association with sea anemones, using them as shelter and protection while benefiting from food carried by water currents. Feeding & Behavior: Filter feeder that consumes fine food particles from the water Uses specialized fan-like claws to capture plankton and suspended foods Typically lives within or near sea anemones Extremely peaceful and non-aggressive Care Requirements: Stable and mature reef aquarium Moderate water flow to carry food particles Optional but beneficial: sea anemone host Supplemental feeding may be needed in low-nutrient systems Important Notes: Fully reef safe and safe with corals Requires clean, stable water conditions May spend most of its time hiding in anemones or rock structures

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The Emerald Crab (Mithraculus sculptus) is one of the most popular reef-safe algae-eating crabs in marine aquariums. Known for its striking green color and small size, this crab is highly effective at controlling nuisance algae, especially bubble algae. It spends most of its time picking algae from live rock and hard-to-reach areas, making it a valuable member of any reef tank cleanup crew. Benefits: Eats bubble algae and film algae Helps maintain clean live rock Reef-safe when well-fed Small and active cleaner Care Notes: Provide stable reef environment Feed if algae is limited Avoid aggressive tank mates Keep in mature aquariums

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The Dwarf Red Tip Hermit Crab is a highly active and efficient scavenger, making it an excellent addition to any marine or reef aquarium cleanup crew. Closely related to the Blue Leg Hermit Crab, this small omnivore constantly explores live rock and sand beds, reaching tight spaces to consume algae, detritus, and leftover food. Also known as the Red Tip Hermit Crab, this species is easily recognized by its bright red legs and face. It belongs to a group often called “equal-handed hermit crabs,” as both claws are similar in size and function. Native to the coastal waters of Mexico, this hardy invertebrate thrives in well-established reef or fish-only systems with sandy substrates, where it actively forages and helps maintain a clean and balanced environment. Benefits in the Aquarium: Excellent algae and detritus cleaner Helps aerate and stir the sand bed Supports beneficial bacterial growth Reaches tight spaces other cleanup crew cannot Habitat & Care: The Red Tip Hermit Crab lives in empty snail shells of various sizes, so it is important to provide extra empty shells to support its growth and natural behavior. It should be kept in a mature aquarium with stable conditions and plenty of live rock and algae for grazing. If natural food sources are limited, dried seaweed or algae-based foods can be offered as a supplement. Important Care Notes: Acclimate slowly to avoid pH shock Keep only in copper-free systems Avoid predatory tank mates Ensure a stable, reef-safe environment

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The Blue Leg Hermit Crab is one of the most popular and effective members of any reef aquarium clean-up crew. Known for its striking blue legs and active behavior, this small hermit crab plays an important role in maintaining a clean and balanced marine environment. Blue Leg Hermit Crabs are excellent scavengers that feed on algae, uneaten food, and detritus, helping reduce waste buildup and prevent nuisance algae growth. They are reef-safe and suitable for most marine aquariums, including nano and large reef systems. Key Benefits Controls algae growth in reef tanks Consumes leftover food and waste Reef-safe with corals and most tank mates Active and interesting behavior Care Requirements Tank Type: Marine / Reef Aquarium Temperament: Peaceful (may fight for shells) Diet: Algae, detritus, leftover food Minimum Tank Size: 10 gallons Special Note: Provide extra empty shells to prevent aggression In Jordan, reef hobbyists commonly add Blue Leg Hermit Crabs as part of a balanced clean-up crew to maintain water quality and reduce manual cleaning. At ReefAmorous, we offer healthy Blue Leg Hermit Crabs with guidance on acclimation and care to ensure success in your reef aquarium.

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