{"product_id":"fly-casters","title":"Fly Casters","description":"\u003ch2 dir=\"ltr\"\u003e\u003cb\u003eThe Foundation of Flight: Premium Fly Casters (Blue \u0026amp; Green Bottle)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e​Take control of your feeding schedule with our high-quality \u003cb\u003eFly Casters\u003c\/b\u003e. \"Casters\" are the pupal stage of the fly lifecycle—hard-shelled, dormant, and ready to transform. By purchasing casters, you are getting the most storage-friendly version of aerial prey, allowing you to hatch fresh, vibrant flies exactly when your pets need them.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e​We offer both \u003cb\u003eGreen Bottle\u003c\/b\u003e and \u003cb\u003eBlue Bottle\u003c\/b\u003e varieties to ensure you have the perfect size for every predator in your collection.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e​\u003cb\u003eAvailable Species\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e​\u003cb\u003eGreen Bottle Casters (\u003c\/b\u003e\u003ci\u003e\u003cb\u003eLucilia sericata\u003c\/b\u003e\u003c\/i\u003e\u003cb\u003e):\u003c\/b\u003e The \"Standard\" size (8–10mm). Ideal for most Jumping Spiders, Mantises, and small insectivorous reptiles. They are highly active and have a brilliant metallic green sheen.\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e​\u003cb\u003eBlue Bottle Casters (\u003c\/b\u003e\u003ci\u003e\u003cb\u003eCalliphora vomitoria\u003c\/b\u003e\u003c\/i\u003e\u003cb\u003e):\u003c\/b\u003e The \"Heavyweight\" size (10–14mm). These produce significantly larger, meatier flies. Perfect for adult large-breed Mantises, larger Jumping Spiders (like \u003ci\u003ePhidippus regius\u003c\/i\u003e), and medium reptiles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e​\u003cb\u003eWhy Choose Casters?\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e​\u003cb\u003eMaximum Shelf Life:\u003c\/b\u003e Unlike hatched flies, casters can be kept in the refrigerator for several weeks. This \"pauses\" their development, giving you total control over your feeder supply.\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e​\u003cb\u003eClean \u0026amp; Odorless:\u003c\/b\u003e In their pupal state, casters are dry, stationary, and produce zero mess or smell.\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e​\u003cb\u003eHatch-on-Demand:\u003c\/b\u003e Simply move the desired amount of casters from the fridge to room temperature, and they will emerge as fresh, nutrient-dense flies in just a few days.\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e​\u003cb\u003eIn-House Quality:\u003c\/b\u003e We turn our own casters daily, ensuring you receive fresh, plump pupae that have a high hatch success rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e​\u003cb\u003eProduct Specifications\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\n\u003cp dir=\"ltr\"\u003eFeature\u003c\/p\u003e\n\u003c\/th\u003e\n\u003cth\u003e\n\u003cp dir=\"ltr\"\u003eDetails\u003c\/p\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eSpecies Options\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eGreen Bottle (L. sericata) or Blue Bottle (C. vomitoria)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eLife Stage\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003ePupae (Casters)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eQuantity\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eSold by volume or approximate count\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eStorage Temp\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eRefrigerate at 3–5°C to delay hatching\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eHatch Time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003e3–9 days at room temperature (depending on species\/temp\/caster age)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eBest For\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003eSpiders, Mantises, Tree Frogs, and Chameleons\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cb\u003ePro-Tip for the Invert Keeper\u003c\/b\u003e\u003c\/h3\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"ltr\"\u003e​\u003cb\u003eThe \"Successive Hatch\" Strategy:\u003c\/b\u003e To ensure you never run out of food, use the \u003cb\u003e1-2-3 Rule\u003c\/b\u003e. Divide your casters into three small portions: place the first portion directly into the enclosure (for immediate hatching), keep the second portion in a cool room (for a mid-week hatch), and leave the third in the refrigerator. This \"staggered\" approach mimics a natural environment and provides a constant, reliable stream of fresh flies without you ever having to manage a massive swarm all at once!\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Bugs \u0026 Beyond","offers":[{"title":"Green","offer_id":52702401986899,"sku":"BUGS-4913-FLY","price":2.0,"currency_code":"GBP","in_stock":false},{"title":"Blue","offer_id":52702402019667,"sku":"BUGS-2773-FLY","price":2.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/9569\/0835\/files\/20260111-110715.png?v=1777755334","url":"https:\/\/bugsandbeyond.co.uk\/products\/fly-casters","provider":"Bugs \u0026 Beyond","version":"1.0","type":"link"}