{"product_id":"newcal-jumbo-cuttlebone-single-pack-4-6","title":"NewCal Jumbo Cuttlebone (Single Pack) 4-6\"","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eNatural Cuttlebone | Calcium Supplement for Shrimp, Snails, and Freshwater Invertebrates\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eCuttlebone is the simplest and most effective way to ensure your freshwater invertebrates are getting the calcium they need — and at Poseidon Aquatics we use it ourselves across our own shrimp and snail tanks. Sourced from natural deep-sea cuttlefish bones with no additives and no bleaching, these are pure, unprocessed pieces that dissolve slowly in water, releasing calcium steadily over time without causing sudden parameter swings.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eCalcium is essential for shell and exoskeleton health in shrimp, snails, crayfish, and other invertebrates. In soft water or remineralised RO setups where natural calcium levels are low, deficiency can lead to thin, pitted, or cracked shells and failed moults in shrimp — adding cuttlebone is one of the easiest and most reliable ways to prevent this. Simply drop a piece into the tank and let it do its job.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eDrop directly into the aquarium — no preparation needed. The cuttlebone will float initially and gradually become waterlogged and sink over time, or can be weighted down with a rock or clip. Shrimp and snails will graze directly on the surface as it dissolves. Replace when fully consumed.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHow Much to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThere is no strict universal dose — cuttlebone dissolves at different rates depending on your water hardness, pH, and how many invertebrates are actively grazing on it. As a practical starting point:\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eUnder 10 gallons — half a piece or one small piece at a time\u003c\/li\u003e\n\u003cli\u003e10–20 gallons — one piece at a time\u003c\/li\u003e\n\u003cli\u003e20–40 gallons — one to two pieces at a time\u003c\/li\u003e\n\u003cli\u003e40+ gallons — two or more pieces depending on your invertebrate load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eThe best way to monitor calcium levels is to test your GH regularly and keep an eye on your snail shells — pitting, thinning edges, or cracking are the earliest visible signs that more calcium is needed. Replace cuttlebone as it is consumed rather than on a fixed schedule, and let your water parameters and your animals guide you.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003ePure natural calcium source — no additives, no bleaching, no artificial processing\u003c\/li\u003e\n\u003cli\u003eDissolves slowly for a steady, gentle calcium release that won't spike parameters\u003c\/li\u003e\n\u003cli\u003eCompletely safe for all freshwater fish, shrimp, snails, and invertebrates\u003c\/li\u003e\n\u003cli\u003eHelps prevent shell erosion, pitting, and failed moults in shrimp and snails\u003c\/li\u003e\n\u003cli\u003eIdeal for soft water and remineralised RO setups where calcium levels may be insufficient\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eSize: 4–6 inches per piece\u003c\/li\u003e\n\u003cli\u003ePure natural cuttlefish bone — colour and shape vary naturally between pieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eNeocaridina and Caridina shrimp colonies\u003c\/li\u003e\n\u003cli\u003eFreshwater snails — Nerites, Mystery Snails, Assassin Snails, and more\u003c\/li\u003e\n\u003cli\u003eCrayfish and freshwater crabs\u003c\/li\u003e\n\u003cli\u003eAny soft water or RO-based aquarium setup where calcium supplementation is beneficial\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NewCal Pet","offers":[{"title":"Default Title","offer_id":49114847412446,"sku":null,"price":11.48,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/4768\/4574\/files\/Photo_c76bf674-ca83-49a4-aa92-26174c534b16.png?v=1741201181","url":"https:\/\/poseidonaquaticsandplants.com\/products\/newcal-jumbo-cuttlebone-single-pack-4-6","provider":"Poseidon Aquatics And Plants","version":"1.0","type":"link"}