{"product_id":"live-marine-rotifers","title":"Live Marine Rotifers (L-Type Brachionus) — Built for Breeders","description":"\u003cp\u003e\u003cstrong\u003eL-type Brachionus plicatilis\u003c\/strong\u003e — 150–360 microns, 500–1,000 per mL, made to order every week. Sized for the mouth opening of first-feed marine larvae including clownfish fry, seahorse fry, mandarin fry, dottybacks, and angelfish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDay-zero feeding.\u003c\/strong\u003e Most live rotifer products ship as starter cultures that require 14–21 days of grow-out before they reach productive density. Our packs ship from a productive parent culture — open the bag, acclimate, and feed directly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEvery bag is a document, not a guess.\u003c\/strong\u003e A signed Certificate of Analysis ships with every order: density declared, count verified, batch dated and traceable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeekly schedule (Tuesday harvest):\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTue 7am\u003c\/strong\u003e — harvested from the parent culture at peak density\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTue 1pm\u003c\/strong\u003e — Quality Report signed (density, vigor, water parameters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTue 4pm\u003c\/strong\u003e — packed in phase-change insulated mailer, shipped same day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWed\u003c\/strong\u003e — at your door (overnight) — refrigerate immediately\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOrder by Tuesday 10am ET to ship the same week.\u003c\/p\u003e\u003ch3\u003eSizes available\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 oz\u003c\/strong\u003e (118 mL) — ~60k to 120k rotifers — single feeding \/ test pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 oz\u003c\/strong\u003e (473 mL) — ~240k to 470k rotifers — small clownfish breeder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32 oz\u003c\/strong\u003e (946 mL) — ~470k to 950k rotifers — mid-sized breeder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Gallon\u003c\/strong\u003e (3.8 L) — ~1.9M to 3.8M rotifers — hatchery \/ serious breeder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOn arrival\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRefrigerate immediately.\u003c\/strong\u003e Lid cracked for air exchange — never seal airtight. Warm to room temperature before feeding. Best within 5 days of arrival.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTo feed:\u003c\/strong\u003e Pour or pipette directly into your target tank, or strain through a 53-micron sieve and rinse. Turn off skimmers and strong return flow for 15–60 minutes so larvae can graze.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTo start your own culture:\u003c\/strong\u003e Add to clean prepared saltwater with gentle aeration and low light. Feed live phytoplankton or commercial rotifer feed. Harvest about 25% daily to keep the population young and productive.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScientific name:\u003c\/strong\u003e Brachionus plicatilis (L-type)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLorica length:\u003c\/strong\u003e 150–360 microns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoubling time:\u003c\/strong\u003e ~24 hours under optimal conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalinity tolerance:\u003c\/strong\u003e 5–40 ppt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature tolerance:\u003c\/strong\u003e 60–82°F (slowed at colder temps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping form:\u003c\/strong\u003e Live, actively reproducing culture in growing water\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLive Arrival Guarantee\u003c\/h3\u003e\u003cp\u003e100% Live Arrival Guarantee on overnight orders. Photo or video evidence of an unopened bag at delivery required for claims within 2 hours of arrival. 2-day shipping carries reduced coverage given the longer transit window.\u003c\/p\u003e","brand":"Shore Aquatic","offers":[{"title":"4 oz","offer_id":45961517859002,"sku":"ROT-LIVE-4OZ","price":19.99,"currency_code":"USD","in_stock":true},{"title":"16 oz","offer_id":45961517891770,"sku":"ROT-LIVE-16OZ","price":39.99,"currency_code":"USD","in_stock":true},{"title":"32 oz","offer_id":45961517924538,"sku":"ROT-LIVE-32OZ","price":59.99,"currency_code":"USD","in_stock":true},{"title":"1 Gallon","offer_id":45961517957306,"sku":"ROT-LIVE-1GAL","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/9799\/0330\/files\/hero-packshot.jpg?v=1780862707","url":"https:\/\/shoreaquatic-com.myshopify.com\/products\/live-marine-rotifers","provider":"shoreaquatic.com","version":"1.0","type":"link"}