{"product_id":"purple-pin-cushion","title":"Purple Pin Cushion Urchin","description":"\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:85a211c4-de01-40c5-b25d-09eba408b3d5-22\" data-testid=\"conversation-turn-46\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] thread-sm:[--thread-content-margin:--spacing(6)] thread-lg:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] thread-lg:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"3dbe7ac1-9857-4bb8-96b9-6791217bd17d\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-mini\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"51\"\u003e\u003cstrong data-start=\"0\" data-end=\"49\"\u003ePurple Pin Cushion Urchin — \u003cem data-start=\"30\" data-end=\"47\"\u003eCidaris cidaris\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"53\" data-end=\"485\"\u003eThe \u003cem data-start=\"57\" data-end=\"74\"\u003eCidaris cidaris\u003c\/em\u003e Purple Pin Cushion Urchin is a striking reef invertebrate with a rounded, rigid test covered in long, vibrant purple spines that resemble a pin cushion. Slow-moving and reef-safe, it grazes along the substrate and rockwork, consuming detritus and contributing to natural tank maintenance. Its unique coloration and dramatic appearance make it a standout addition to both beginner and advanced reef aquariums.\u003c\/p\u003e\n\u003cp data-start=\"487\" data-end=\"826\"\u003ePurple Pin Cushion Urchins thrive in established reef tanks with stable water parameters, moderate water flow, and plenty of hard surfaces for grazing. Introduce only after the system is mature to ensure adequate nutrition and minimize stress. A \u003cstrong data-start=\"733\" data-end=\"768\"\u003eminimum tank size of 30 gallons\u003c\/strong\u003e is recommended to allow room for foraging and movement.\u003c\/p\u003e\n\u003cp data-start=\"828\" data-end=\"1108\"\u003eTheir diet can be supplemented with finely powdered or pellet foods from \u003cstrong data-start=\"901\" data-end=\"928\"\u003eSan Francisco Bay Brand\u003c\/strong\u003e, \u003cstrong data-start=\"930\" data-end=\"940\"\u003eHikari\u003c\/strong\u003e, \u003cstrong data-start=\"942\" data-end=\"948\"\u003ePE\u003c\/strong\u003e, \u003cstrong data-start=\"950\" data-end=\"957\"\u003eTDO\u003c\/strong\u003e, and \u003cstrong data-start=\"963\" data-end=\"984\"\u003eNew Life Spectrum\u003c\/strong\u003e, alongside natural algae and detritus grazing. Target feeding helps maintain optimal health and vibrant spine coloration.\u003c\/p\u003e\n\u003cp data-start=\"1110\" data-end=\"1172\"\u003e\u003cstrong data-start=\"1110\" data-end=\"1139\"\u003eApproximate product size:\u003c\/strong\u003e 2\"–3\" (varies by availability)\u003c\/p\u003e\n\u003cp data-start=\"1174\" data-end=\"1514\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eWe maintain a rigorous, veterinarian-approved quarantine program that includes proactive treatments, careful observation, and daily monitoring to ensure the highest standards of invertebrate health. Our biosecurity practices reduce the risk of any cross-contamination between systems, meaning our livestock are ready for your display tanks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003cdiv aria-hidden=\"true\" data-edge=\"true\" class=\"pointer-events-none h-px w-px\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"NO_VENDOR","offers":[{"title":"Default","offer_id":42069707915351,"sku":"7606580","price":45.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/4742\/3319\/files\/1d5e88fa-a395-48d0-b2e1-1f9a94ae1464.jpg?v=1778596527","url":"https:\/\/www.reefescape.net\/products\/purple-pin-cushion","provider":"Reef eScape","version":"1.0","type":"link"}