{"title":"Additives","description":null,"products":[{"product_id":"cal-mag","title":"Cal-Mag","description":"\u003cp\u003eMore than a standard cal-mag. Ours carries kelp extract — a natural source of nitrogen, auxins, cytokinins and other phytohormones, plus micronutrients competitors leave out — which also assists chelation and pulls more of your feed into the plant instead of into the medium.\u003c\/p\u003e\n\u003cp\u003eCalcium and magnesium deficiencies happen in any garden, but some media stack the odds against you. Coco coir in particular can lock out a share of the calcium and magnesium you feed. Calcium lengthens roots and builds cell walls; magnesium activates the enzymes behind nutrient absorption and is a literal component of chlorophyll. Short either one and photosynthesis, growth and flowering all pay for it.\u003c\/p\u003e\n\u003ch3\u003eGuaranteed analysis — 2-0-0\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTotal nitrogen 2.0% (0.1% ammoniacal, 1.9% nitrate)\u003c\/li\u003e\n\u003cli\u003eCalcium 3.0% · Magnesium 0.5% water-soluble\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDerived from\u003c\/strong\u003e ammonium calcium nitrate double salt, magnesium sulfate, calcium acetate, magnesium acetate, kelp extract\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to run it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAs needed rather than as part of the regular schedule — during rapid vegetative growth, in transition, or at peak flowering.\u003c\/li\u003e\n\u003cli\u003eSoak coco coir and other soilless media with Cal-Mag before planting.\u003c\/li\u003e\n\u003cli\u003eUseful insurance when running another brand’s base that may not carry a full essential set. Emerald Harvest’s own 2-part and 3-part bases already do.\u003c\/li\u003e\n\u003cli\u003eReplaces any calcium-magnesium product.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIn the bottle:\u003c\/strong\u003e dark brown to black, mildly viscous and slightly oily. Smells like salt water with a bit of beach funk. Shelf life 3 years or more.\u003c\/p\u003e","brand":"Emerald Harvest","offers":[{"title":"1 Quart (0.95 L)","offer_id":61213818552460,"sku":"450-001","price":15.38,"currency_code":"USD","in_stock":true},{"title":"1 Gallon (3.79 L)","offer_id":61213818585228,"sku":"450-004","price":46.15,"currency_code":"USD","in_stock":true},{"title":"6 Gallon (22.71 L)","offer_id":61213818617996,"sku":"450-023","price":164.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0342\/9561\/1532\/files\/EH-6gal-Cal-Mag-1000x784.png?v=1787269098"},{"product_id":"hydra-clear","title":"Hydra Clear","description":"\u003cp\u003eClogging is the quiet tax on organic and near-organic feeding programs. A blocked line means uneven delivery — some plants get less water and less nutrient than they need, and consistency, quality and yield all slip. You paid for those nutrients whether or not they reached the plant.\u003c\/p\u003e\n\u003cp\u003eHydra Clear is an all-natural enzyme blend, derived from both bacteria and fungi, chosen specifically to eat through the biofilm that accumulates on surfaces and inside closed feeding systems. Tough on buildup, and gentle on the plants and equipment you have already invested in — no harsh chemistry involved.\u003c\/p\u003e\n\u003cp\u003eIt also plays well with Root Wizard. The enzymes attack clogs and buildup without damaging beneficial microbes, so you can run a live inoculant and a clean system at the same time.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial grade\u003c\/li\u003e\n\u003cli\u003e100:1 concentration\u003c\/li\u003e\n\u003cli\u003eSafe and easy to use\u003c\/li\u003e\n\u003cli\u003eFast acting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to run it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAn 8-hour treatment between crop cycles to clean the entire hydroponic system.\u003c\/li\u003e\n\u003cli\u003eExperienced growers can prevent buildup by running a diluted amount during the regular feeding program.\u003c\/li\u003e\n\u003cli\u003eA small amount works for wiping down surfaces.\u003c\/li\u003e\n\u003cli\u003eReplaces most enzyme formulas and irrigation line cleaning products.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIn the bottle:\u003c\/strong\u003e clear and slightly milky, a little thicker than water, subtle earth tones. Shelf life 2 years or more.\u003c\/p\u003e","brand":"Emerald Harvest","offers":[{"title":"1 Gallon (3.79 L)","offer_id":61220535500940,"sku":"490-002","price":196.2,"currency_code":"USD","in_stock":true},{"title":"6 Gallon (22.71 L)","offer_id":61220535533708,"sku":"490-003","price":1092.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0342\/9561\/1532\/files\/EH-6gal-Hydra-Clear-1000x784.png?v=1790131320"},{"product_id":"sturdy-stalk","title":"Sturdy Stalk","description":"\u003cp\u003eBuild inner strength. Silica deposited in plant tissue thickens and stiffens cell walls — the difference between a plant that stands up under a heavy crop and one that lodges.\u003c\/p\u003e\n\u003cp\u003eSilicon and lignin are the cement between the brick-like components of a cell wall. In nature silicon almost always occurs as silica, which is inert, insoluble, and useless to a plant. Only silicic acid can be absorbed by the roots — and silicic acid is unstable on its own. Combining silica with potassium produces a stable silicate that time-releases silicic acid into your nutrient solution, which is exactly what Sturdy Stalk is.\u003c\/p\u003e\n\u003cp\u003eThicker cell walls also hold moisture and resist damage, which matters under the intense artificial light of an indoor room. And because it is potassium silicate, you get a potassium contribution alongside — useful in flower, though not enough to replace a real bloom booster.\u003c\/p\u003e\n\u003ch3\u003eGuaranteed analysis — 0-0-1\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSoluble potash 1.0%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDerived from\u003c\/strong\u003e potassium silicate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to run it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAs needed rather than every feed — during transition, transplanting, or to support bulking buds in mid to late flower.\u003c\/li\u003e\n\u003cli\u003eAlone on a watering day: mix until fully dissolved. With other nutrients: dissolve Sturdy Stalk into water completely, bring pH to 6.0–6.5, \u003cem\u003ethen\u003c\/em\u003e add base nutrients and everything else. Feed immediately — potassium silicate is highly reactive with other nutrient ingredients.\u003c\/li\u003e\n\u003cli\u003eUse on top of a bloom booster, not in place of one.\u003c\/li\u003e\n\u003cli\u003eReplaces any silica, silicate or monosilicic acid product.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIn the bottle:\u003c\/strong\u003e looks like lemonade, watery, slightly caustic smell. Shelf life 10 years or more.\u003c\/p\u003e","brand":"Emerald Harvest","offers":[{"title":"1 Quart (0.95 L)","offer_id":61220562075788,"sku":"460-001","price":26.15,"currency_code":"USD","in_stock":true},{"title":"1 Gallon (3.79 L)","offer_id":61220562108556,"sku":"460-004","price":87.69,"currency_code":"USD","in_stock":true},{"title":"6 Gallon (22.71 L)","offer_id":61220562141324,"sku":"460-023","price":307.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0342\/9561\/1532\/files\/EH-6gal-Sturdy-Stalk-1000x784.png?v=1790131899"}],"url":"https:\/\/shopemeraldharvest.com\/en-gb\/collections\/additives.oembed","provider":"Emerald Harvest Inc","version":"1.0","type":"link"}