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The Pitho Crab (Pitho mirabilis) is a powerhouse addition to any marine reef aquarium, blending high-impact aesthetics with essential utility. Featuring a fuzzy, tan-to-brown carapace that provides excellent camouflage, this industrious crustacean is a master of the "nuisance management" era of reef keeping—serving as a natural biological control for problematic hair algae and even macroalgae that other herbivores might ignore. It is a dedicated scavenger of the rockwork and crevices, making it a functional cornerstone of a healthy reef ecosystem.
This hardy crab thrives in established systems with plenty of live rock to provide hiding spots and foraging surfaces. While generally peaceful and reef-compatible, its bold personality makes it a standout member of any clean-up crew, as it tirelessly picks at filamentous algae and uneaten organic debris. To ensure long-term health, supplement its diet with dried seaweed or high-quality sinking pellets if algae levels become low. Ensure your aquarium maintains stable calcium and iodine levels, as these are essential for successful molting and the development of its exoskeleton.
Note: Images shown are stock images and not the actual crabs you will receive.
Care Level: Easy
Temperament: Peaceful
Minimum Tank Size: 10 Gallons
Diet: Herbivore / Omnivore
Reef Compatible: Yes
Max Size: 1–2 Inches
Water Conditions: 72 to 78°F, dKH 8 to 12, pH 8.1 to 8.4, sg 1.023 to 1.025
The Pitho Crab is a strategic choice for hobbyists looking for "targeted biological control" for nuisance algae like Bryopsis or hair algae. Its specialized pincers allow it to graze on textures and lengths of algae that snails and smaller crabs often cannot manage. In the context of modern reef keeping, it is widely considered an essential "utility invertebrate" for maintaining a pristine rock appearance without the aggressive tendencies found in some larger crab species. For maximum success, avoid housing with large, predatory fish and maintain stable water parameters to facilitate its regular molting cycles.
We’ve dialed in the logistics for national Overnight Delivery to ensure your livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these invertebrates from the facility to your tank with zero compromise on health or vitality.
The Pitho Crab (Pitho mirabilis) is a powerhouse addition to any marine reef aquarium, blending high-impact aesthetics with essential utility. Featuring a fuzzy, tan-to-brown carapace that provides excellent camouflage, this industrious crustacean is a master of the "nuisance management" era of reef keeping—serving as a natural biological control for problematic hair algae and even macroalgae that other herbivores might ignore. It is a dedicated scavenger of the rockwork and crevices, making it a functional cornerstone of a healthy reef ecosystem.
This hardy crab thrives in established systems with plenty of live rock to provide hiding spots and foraging surfaces. While generally peaceful and reef-compatible, its bold personality makes it a standout member of any clean-up crew, as it tirelessly picks at filamentous algae and uneaten organic debris. To ensure long-term health, supplement its diet with dried seaweed or high-quality sinking pellets if algae levels become low. Ensure your aquarium maintains stable calcium and iodine levels, as these are essential for successful molting and the development of its exoskeleton.
Note: Images shown are stock images and not the actual crabs you will receive.
Care Level: Easy
Temperament: Peaceful
Minimum Tank Size: 10 Gallons
Diet: Herbivore / Omnivore
Reef Compatible: Yes
Max Size: 1–2 Inches
Water Conditions: 72 to 78°F, dKH 8 to 12, pH 8.1 to 8.4, sg 1.023 to 1.025
The Pitho Crab is a strategic choice for hobbyists looking for "targeted biological control" for nuisance algae like Bryopsis or hair algae. Its specialized pincers allow it to graze on textures and lengths of algae that snails and smaller crabs often cannot manage. In the context of modern reef keeping, it is widely considered an essential "utility invertebrate" for maintaining a pristine rock appearance without the aggressive tendencies found in some larger crab species. For maximum success, avoid housing with large, predatory fish and maintain stable water parameters to facilitate its regular molting cycles.
We’ve dialed in the logistics for national Overnight Delivery to ensure your livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these invertebrates from the facility to your tank with zero compromise on health or vitality.
