{"title":"Crabs \u0026 Hermits","description":null,"products":[{"product_id":"blue-leg-hermit-crab-kit-5-pcs","title":"Blue Leg Hermit crab pack | Francois Neo","description":"\u003cdiv style=\"background: #f0faf7; border: 1px solid #b8e0d2; padding: 10px; border-radius: 8px; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003e Bundle Offer:\u003c\/strong\u003e Buy \u003cstrong\u003e2 or more packs\u003c\/strong\u003e of Clean-Up Crew members and get \u003cstrong\u003e10% off automatically!\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiscount applied at checkout — no code needed.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003ch2\u003e Blue-Leg Hermit Crab (\u003cem\u003eClibanarius tricolor\u003c\/em\u003e) — Reef Tank Essential\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBlue-Leg Hermit Crab\u003c\/strong\u003e is one of the most popular and effective members of any reef Clean-Up Crew (CUC). Small, active, and endlessly curious, these tiny workers keep your reef spotless by consuming algae, detritus, and uneaten food from rocks and sand.\u003c\/p\u003e\n\u003cp\u003eEach crab is hand-selected and shipped from trusted suppliers to ensure top health and reef safety. Perfect for nano and mid-sized reef systems, from \u003cstrong\u003e10 to 100 gallons\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e Why You’ll Love Blue-Legs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Algae Eaters:\u003c\/strong\u003e graze on film algae, diatoms, and cyanobacteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetritus Control:\u003c\/strong\u003e consume leftover food and organic waste before it decays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReef-Safe:\u003c\/strong\u003e won’t harm corals or fish when well-fed and provided with spare shells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisually Engaging:\u003c\/strong\u003e constantly moving and cleaning, adding personality to your reef.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural Maintenance:\u003c\/strong\u003e part of François Neo’s “Nature First” reef-keeping philosophy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Kit Options Available\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Pack:\u003c\/strong\u003e Perfect starter set for nano tanks (5–10 gallons)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Pack:\u003c\/strong\u003e Great for 10–20 gallon systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-Pack:\u003c\/strong\u003e Balanced Clean-Up Crew for 30–40 gallon reefs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50-Pack:\u003c\/strong\u003e Ideal for 50–75 gallon mixed reefs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100-Pack:\u003c\/strong\u003e Bulk pack for large tanks or professional setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFrançois’ Rule:\u003c\/em\u003e 1 Blue-Leg Hermit per gallon is the perfect ratio for balanced natural cleaning.\u003c\/p\u003e\n\u003ch3\u003e Behavior \u0026amp; Care\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e• Highly active grazers — often seen climbing rocks and glass.\u003c\/li\u003e\n\u003cli\u003e• Will occasionally switch shells — always provide \u003cstrong\u003eextra empty shells\u003c\/strong\u003e to avoid fights.\u003c\/li\u003e\n\u003cli\u003e• Peaceful and compatible with snails, crabs, and reef-safe fish.\u003c\/li\u003e\n\u003cli\u003e• Sensitive to copper — never use medications containing copper in reef tanks.\u003c\/li\u003e\n\u003cli\u003e• Acclimate slowly using the drip method before introducing to your aquarium.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Shipping \u0026amp; Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShipped in temperature-controlled packaging (Mon–Wed)\u003c\/li\u003e\n\u003cli\u003e Live Arrival Support included\u003c\/li\u003e\n\u003cli\u003e Reef-safe, collected and handled responsibly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Perfect Companions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/nassarius-snails\"\u003eNassarius Snails\u003c\/a\u003e — sand stirrers \u0026amp; waste processors\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/emerald-mithrax-crabs\"\u003eEmerald Mithrax Crab\u003c\/a\u003e — bubble algae control\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/reef-safe-urchins\"\u003eTuxedo Urchin\u003c\/a\u003e — macro algae grazer\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/sand-sifting-starfish\"\u003eSand-Sifting Star\u003c\/a\u003e — sand bed cleaner\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFrom reefers, for reefers — The Francois Neo Way \u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eTags:\u003c\/strong\u003e blue leg hermit crab, clean up crew, reef tank maintenance, clibanarius tricolor, saltwater invertebrate, aquarium partners, François Neo, reef kit, nano reef, AIO reef.\u003c\/p\u003e","brand":"FrancoisNeo","offers":[{"title":"5-pack","offer_id":47505046307039,"sku":"BLH-5","price":10.99,"currency_code":"USD","in_stock":true},{"title":"10-pack","offer_id":47505046339807,"sku":"BLH-10","price":20.99,"currency_code":"USD","in_stock":true},{"title":"30-pack","offer_id":47505046372575,"sku":"BLH-30","price":49.99,"currency_code":"USD","in_stock":true},{"title":"50-pack","offer_id":47505046405343,"sku":"BLH-50","price":84.99,"currency_code":"USD","in_stock":true},{"title":"100-pack","offer_id":47505046438111,"sku":"BLH-100","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/0326\/5247\/files\/product_francois_neo.com.zip_-_2.jpg?v=1760821984"},{"product_id":"emerald-mithrax-crab","title":"Emerald Crab (Mithraculus sculptus) | Francois Neo","description":"\u003ch2\u003eEmerald Mithrax Crab (\u003cem\u003eMithraculus sculptus\u003c\/em\u003e) — Bubble Algae Control \u0026amp; Reef Maintenance\u003c\/h2\u003e\n\u003cdiv style=\"background: #f0faf7; border: 1px solid #b8e0d2; padding: 10px; border-radius: 8px; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eBundle Offer:\u003c\/strong\u003e Buy \u003cstrong\u003e2 or more packs\u003c\/strong\u003e of Clean-Up Crew members and get \u003cstrong\u003e10% off automatically.\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiscount applied at checkout — no code needed.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eEmerald  Crab\u003c\/strong\u003e is one of the most trusted natural algae controllers in the reef hobby. Famous for consuming \u003cstrong\u003eValonia (bubble algae)\u003c\/strong\u003e and leftover organics, this small green crab is an essential member of any Clean-Up Crew (CUC) focused on long-term balance and low-maintenance reef keeping.\u003c\/p\u003e\n\u003cp\u003eHand-selected and reef-safe, Emerald Crabs are active grazers that work primarily at night, patrolling rocks and crevices to clean detritus and nuisance algae. They pair perfectly with Blue-Leg Hermits and Snails for complete system maintenance.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Emerald Crabs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNatural control for bubble algae, film algae, and organic buildup.\u003c\/li\u003e\n\u003cli\u003eReef-safe when well-fed; peaceful and beneficial in mixed reefs.\u003c\/li\u003e\n\u003cli\u003eExcellent scavengers — clean up leftover food and detritus.\u003c\/li\u003e\n\u003cli\u003eActive mostly at night, providing continuous cleaning.\u003c\/li\u003e\n\u003cli\u003eCompatible with most snails, hermits, and small fish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePack Options Available\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Pack:\u003c\/strong\u003e Ideal starter set for nano or small reefs (up to 20 gallons)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Pack:\u003c\/strong\u003e Great for 20–50 gallon mixed reefs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Pack:\u003c\/strong\u003e Perfect for 75–100 gallon or multi-tank systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFrançois’ Rule:\u003c\/em\u003e One Emerald Crab per 15–20 gallons ensures natural algae control without overstocking.\u003c\/p\u003e\n\u003ch3\u003eBehavior \u0026amp; Care\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNocturnal and shy — often hide during the day and clean at night.\u003c\/li\u003e\n\u003cli\u003eFeed occasionally with seaweed, pellets, or meaty foods if algae is scarce.\u003c\/li\u003e\n\u003cli\u003eProvide stable rock structures to explore and graze on.\u003c\/li\u003e\n\u003cli\u003eAlways drip acclimate slowly before introducing to your aquarium.\u003c\/li\u003e\n\u003cli\u003eAvoid housing multiple large males in very small systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShipped in temperature-controlled packaging (Mon–Wed)\u003c\/li\u003e\n\u003cli\u003eLive Arrival Support included\u003c\/li\u003e\n\u003cli\u003eResponsibly collected and fully reef-safe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerfect Companions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/blue-leg-hermit-crab\"\u003eBlue-Leg Hermit Crabs\u003c\/a\u003e — active grazers for rock and sand\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/astraea-snails\"\u003eAstraea Snails\u003c\/a\u003e — glass and surface cleaners\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/trochus-snails\"\u003eTrochus Snails\u003c\/a\u003e — rock and overflow cleaners\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/nassarius-snails\"\u003eNassarius Snails\u003c\/a\u003e — detritus and sand cleaners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFrom reefers, for reefers — The François Neo Way.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eTags:\u003c\/strong\u003e emerald crab, mithraculus sculptus, reef clean up crew, bubble algae control, reef tank maintenance, aquarium partners, François Neo, reef kit, nano reef, AIO reef.\u003c\/p\u003e","brand":"FrancoisNeo","offers":[{"title":"2 crab","offer_id":47505230004447,"sku":"Crab-2","price":14.0,"currency_code":"USD","in_stock":true},{"title":"5 crab","offer_id":47505230037215,"sku":"Crab-5","price":34.0,"currency_code":"USD","in_stock":true},{"title":"10 crab","offer_id":47505230069983,"sku":"Crab-10","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/0326\/5247\/files\/emerald_crab.jpg?v=1760922830"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/0326\/5247\/collections\/Crabes_des_profondeurs_en_gravure_bleue.png?v=1792636511","url":"https:\/\/francoisneo.com\/collections\/crabs-hermits.oembed","provider":"FrancoisNeo","version":"1.0","type":"link"}