{"product_id":"pencil-urchin","title":"Pencil Urchin","description":"\u003cp\u003eThe slate pencil urchin (Eucidaris tribuloides) has thick, blunt spines and grazes algae across the rockwork. Colors and size vary.\u003c\/p\u003e\u003ch3\u003ePencil Urchin Care Guide\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank size:\u003c\/strong\u003e 30 gallons or more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdult size:\u003c\/strong\u003e about 3 inches (8 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 72–78°F (22–26°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e 8.1–8.4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e SG 1.023–1.025, no copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiet:\u003c\/strong\u003e Algae, nori and sinking pellets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperament:\u003c\/strong\u003e Peaceful with fish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReef safe:\u003c\/strong\u003e With caution: may graze coralline algae and knock over or nibble corals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp class=\"arium-photo-credit\" style=\"font-size:12px;color:#646f66;margin-top:18px\"\u003ePhoto: \u003ca href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Eucidaris_tribuloides_(Slate-pencil_Urchin).jpg\" rel=\"nofollow noopener\" target=\"_blank\"\u003eNhobgood (talk) Nick Hobgood\u003c\/a\u003e, \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\" rel=\"license nofollow noopener\" target=\"_blank\"\u003eCC BY-SA 3.0\u003c\/a\u003e, via Wikimedia Commons. Representative photo of the species; individual animals vary.\u003c\/p\u003e","brand":"Arium","offers":[{"title":"Default Title","offer_id":68126947180762,"sku":null,"price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/9356\/9754\/files\/08.jpg?v=1794354582","url":"https:\/\/www.arium-usa.com\/products\/pencil-urchin","provider":"Arium","version":"1.0","type":"link"}