{"product_id":"pithos-crab","title":"Pitho Crab","description":"\u003cp\u003ePitho Crabs are highly useful additions to saltwater aquarium clean up crews due to their strong appetite for nuisance algae and their ability to graze in areas that many snails may ignore. Often compared to Emerald Crabs, Pitho Crabs are valued for consuming hair algae, turf algae, bubble algae, Caulerpa, Dictyota, and other problem algae growth on live rock and hard surfaces. Their compact size, cryptic coloration, and steady grazing behavior make them especially useful in established reef aquariums with active algae growth. While they are generally peaceful, they should still be considered reef safe with caution, as they are opportunistic crabs and may occasionally investigate soft corals, weakened invertebrates, or leftover meaty foods.\u003c\/p\u003e\n\u003ch2\u003eIntroduction to Pitho Crab (Bubble Algae Grazer \u0026amp; Reef Cleanup Crew Specialist)\u003c\/h2\u003e\n\u003cp\u003ePitho Crabs (Pitho mirabilis) are small Caribbean algae-grazing crabs from the Mithracidae family, the same general family group that includes Emerald Crabs and Ruby Mithrax Crabs. In the wild, they are found among rockwork, rubble, and algae-covered surfaces where their mottled coloration helps them blend into their surroundings. In the aquarium, they spend much of their time slowly moving across rockwork and horizontal surfaces while picking at nuisance algae.\u003c\/p\u003e\n\u003cp\u003ePitho Crabs are especially popular for aquariums dealing with bubble algae or persistent turf-style algae. They are often considered a more reef-friendly alternative to some Emerald Crabs, though individual behavior can still vary.\u003c\/p\u003e\n\u003ch2\u003eCare Requirements\u003c\/h2\u003e\n\u003cp\u003eCare Level: Easy – Hardy when kept in stable, established aquariums\u003cbr\u003eMinimum Tank Size: 15+ gallons\u003cbr\u003eAquarium Setup: Requires live rock, grazing surfaces, hiding places, stable parameters, and peaceful tankmates\u003c\/p\u003e\n\u003cp\u003ePitho Crabs do best in mature saltwater aquariums with plenty of rockwork and natural algae growth. They are relatively small, but they need enough grazing area to support their feeding behavior. They may hide more when kept with aggressive or overly active tankmates, which can reduce how much grazing they do.\u003c\/p\u003e\n\u003ch2\u003eDiet \u0026amp; Nutrition\u003c\/h2\u003e\n\u003cp\u003ePitho Crabs are primarily algae-grazing omnivores that feed on nuisance algae, macroalgae, detritus, and leftover foods.\u003c\/p\u003e\n\u003cp\u003eDiet: Omnivorous Grazer – Prefers nuisance algae, macroalgae, detritus, and small meaty leftovers\u003cbr\u003eRecommended Foods:\u003cbr\u003eNaturally occurring hair algae and turf algae\u003cbr\u003eBubble algae, including Valonia-type algae\u003cbr\u003eCaulerpa and Dictyota macroalgae\u003cbr\u003eDetritus and leftover fish food\u003cbr\u003eDried seaweed or nori\u003cbr\u003eAlgae wafers\u003cbr\u003eSmall meaty foods such as mysis shrimp or finely chopped seafood if natural food is limited\u003c\/p\u003e\n\u003cp\u003ePitho Crabs are best used in aquariums with active algae growth. If the tank becomes too clean, supplemental feeding may be needed to prevent them from becoming overly opportunistic.\u003c\/p\u003e\n\u003ch2\u003eLifespan \u0026amp; Growth Rate\u003c\/h2\u003e\n\u003cp\u003eLifespan: 1-3+ years with proper care\u003cbr\u003eGrowth Rate: Moderate – Females can reach around 1.5 inches across the carapace, with males usually staying slightly smaller\u003c\/p\u003e\n\u003cp\u003ePitho Crabs stay manageable compared to many larger marine crabs, but they are still strong enough to move through rockwork and investigate crevices while feeding. Like other crabs, they molt as they grow and require stable water parameters to molt successfully.\u003c\/p\u003e\n\u003ch2\u003eTemperament \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eTemperament: Peaceful to Semi-Peaceful – Generally non-aggressive, but opportunistic\u003cbr\u003eReef Safe? With caution – Useful in reef aquariums, but may occasionally pick at soft corals or small weakened invertebrates\u003c\/p\u003e\n\u003cp\u003ePitho Crabs are generally suitable for peaceful reef aquariums and can be kept with most reef-safe fish and invertebrates. They should not be housed with aggressive crab predators such as triggers, puffers, hawkfish, large wrasses, large crabs, or fish that may pick at small crustaceans. Keeping them well fed and providing natural algae growth may help reduce opportunistic behavior.\u003c\/p\u003e\n\u003ch2\u003eCommon Challenges \u0026amp; Considerations\u003c\/h2\u003e\n\u003cp\u003eReef Safe With Caution: Pitho Crabs are usually well behaved, but they may occasionally pick at soft corals or investigate weakened animals.\u003cbr\u003eBest for Algae-Rich Systems: They are most useful in aquariums with bubble algae, hair algae, turf algae, or macroalgae growth.\u003cbr\u003eIndividual Behavior Can Vary: Like Emerald Crabs, some individuals may be more opportunistic than others.\u003cbr\u003eMay Hide Around Aggressive Fish: If housed with intimidating tankmates, they may stay hidden and graze less effectively.\u003cbr\u003eMolting Sensitivity: Sudden changes in salinity, pH, or alkalinity can cause stress during molting.\u003cbr\u003eSensitive to Copper: Like all marine crabs, they should never be exposed to copper-based medications.\u003c\/p\u003e\n\u003cp\u003eTo prevent issues, acclimate them carefully, keep them with peaceful tankmates, provide a mature aquarium with natural algae growth, avoid copper exposure, and offer supplemental foods if algae becomes limited.\u003c\/p\u003e\n\u003ch2\u003eWater Conditions\u003c\/h2\u003e\n\u003cp\u003eTemperature: 72-78°F\u003cbr\u003edKH Alkalinity: 8-12\u003cbr\u003epH: 8.1-8.4\u003cbr\u003eSpecific Gravity: 1.023-1.025\u003c\/p\u003e","brand":"TSA Inverts","offers":[{"title":"Default Title","offer_id":51087661957418,"sku":"CRABxPitho","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/tsa-inverts-pitho-crab-1251806513.png?v=1785518679","url":"https:\/\/topshelfaquatics.com\/products\/pithos-crab","provider":"Top Shelf Aquatics ","version":"1.0","type":"link"}