Sally Lightfoot Crab

$20.00
  • Please Note:Due to variations within species, your item may not look identical to the image provided. Approximate size range may also vary between individual specimen
  • Approximate Purchase Size: 1 " to 2-1/2"

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Description

The Sally Lightfoot Crab (Grapsus grapsus) is a strikingly colorful species native to the rocky shores of the Pacific coast of the Americas, especially the Galápagos Islands. It’s known for its agility, vivid colors, and ecological role in coastal environments.


🦀 Description:

  • Size: Up to 8 inches (20 cm) across including legs; carapace is typically 3–4 inches wide.

  • Coloration:

    • Adults: Bright red, orange, and blue markings with yellow underbellies.

    • Juveniles: Darker, often black or brown with white spots—better camouflage against rocks.

  • Body Shape: Flat, wide carapace with five pairs of legs, the front pair ending in small pincers.

  • Behavior: Very quick and agile; excellent climbers and jumpers. Can scuttle rapidly across rocks and walls.


🌊 Habitat (in the wild):

  • Found in the intertidal zone, especially on volcanic rocks where the surf crashes.

  • Prefers sunny, warm climates.

  • Omnivorous: feeds on algae, plant matter, detritus, and even carrion or bird droppings.


🧑‍🌾 Captive Care Guide:

Note: Keeping Sally Lightfoot Crabs in captivity can be challenging and is not ideal for beginners.

📦 Tank Requirements:

  • Tank Size: Minimum 30–50 gallons for one adult.

  • Lid: Secure lid is crucial—they are escape artists.

  • Substrate: Rocky with some sandy areas. Provide plenty of hiding spots and climbing surfaces.

  • Temperature: 75–82°F (24–28°C).

  • Salinity: Specific gravity 1.023–1.025 (marine/saltwater).

  • pH: 8.1–8.4

  • Lighting: Moderate to strong lighting to encourage algal growth.

💧 Water Quality:

  • Excellent filtration is essential (they are sensitive to poor water quality).

  • Regular water changes (10–20% weekly).

  • Use marine-grade salt mix and test salinity regularly.

🍴 Diet:

  • Omnivorous scavengers. Feed:

    • Algae (nori, spirulina)

    • Frozen or dried seaweed

    • Small bits of shrimp or fish

    • Commercial marine crab foods

  • Feed every other day in captivity.

🤝 Compatibility:

  • Semi-aggressive: Can be territorial, especially in small tanks.

  • Not reef-safe with delicate corals or very small invertebrates.

  • Best kept alone or with large, peaceful tankmates in a spacious tank.


🧠 Tips:

  • Provide strong water flow to mimic tidal environments.

  • Mimic natural day/night cycles with light timers.

  • Always quarantine new animals to avoid introducing diseases.

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