{"product_id":"calcium-soluble","title":"Calcium Soluble","description":"\u003cp\u003e\u003cem\u003e⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.\u003c\/em\u003e\u003c\/p\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eCalcium Soluble\u003c\/strong\u003e from The Soil Makers is a premium, 100% pulverized limestone calcium carbonate powder designed to lift calcium levels in hydroponic and soil systems—without adding magnesium.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongelemental calcium:\u003e 38%;\u003c\/strongelemental\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong calcium carbonate equivalent\u003e 95%;\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong magnesium content:\u003e very low, making it ideal when soils are already high in magnesium;\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong particle size:\u003e 97.0% passing at 100 mesh and 85% passing at 200 mesh, ensuring quick dispersion;\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong form:\u003e fine, easy-to-dissolve powder suitable for soil mixes and hydroponic solutions;\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong brand:\u003e The Soil Makers — backed by hands-on soil science expertise.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhy this matters: calcium is essential for strong cell walls, robust nutrient transport, and steady plant development. With a high Ca content and minimal magnesium, Calcium Soluble provides a concentrated calcium boost without unintentionally altering the soil’s magnesium balance. This makes it a reliable choice when soils already contain adequate or high magnesium levels, where dolomitic lime could tilt the balance unfavorably.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal use cases:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eHydroponic systems needing a pure calcium source that won’t over-supply magnesium.\u003c\/li\u003e \u003cli\u003eSoil gardens and raised beds where magnesium is abundant and a calcium boost is required for fruiting crops, tomatoes, peppers, and leafy greens.\u003c\/li\u003e \u003cli\u003eContainer gardening and potting mixes that call for a finely milled calcium carbonate amendment for steady calcium availability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat sets Calcium Soluble apart:\u003c\/strong\u003e it delivers reliable calcium with high purity and a predictable dispersion profile, helping you maintain calcium levels where they matter most while avoiding magnesium-driven side effects. Trust The Soil Makers to provide mineral amendments that support healthy root development, strong stems, and better nutrient uptake across your indoor and outdoor growing environments.\u003c\/p\u003eThis is a pulverized powder (calcium carbonate) - This high quality 100% pulverized limestone is high in calcium and very low in magnesium content. Superior to dolomitic lime when soil is already high in magnesium. Elemental calcium is 38%. Calcium carbonate equivalent is 95%. This product is 97.0 % passing at 100 mesh or 85% passing at 200 mesh.\u003c\/div\u003e","brand":"The Soil Makers","offers":[{"title":"7 lbs","offer_id":52790191980864,"sku":"sku-43952966762720","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/7335\/3536\/files\/SOLUBLECALCIUMJAR.jpg?v=1783971314","url":"https:\/\/growtime.shop\/products\/calcium-soluble","provider":"Grow Time Garden Supply","version":"1.0","type":"link"}