{"product_id":"terra-aquatica-calcium-magnesium","title":"Terra Aquatica Calcium Magnesium Supplement for RO and Soft Water","description":"\u003ch2\u003ePuts back the calcium and magnesium your filter took out\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTerra Aquatica Calcium Magnesium Supplement\u003c\/strong\u003e is a straightforward \u003cstrong\u003eCalMag\u003c\/strong\u003e correction for growers on \u003cstrong\u003ereverse osmosis, rainwater or naturally soft supplies\u003c\/strong\u003e. Both elements are secondary macronutrients, needed in far larger amounts than the trace elements, and a shortfall shows up quickly under strong lighting where transpiration is high.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrects soft and RO water\u003c\/strong\u003e - restores the calcium and magnesium a filter or a soft supply leaves out\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStops blossom-end style tip burn\u003c\/strong\u003e - calcium moves only with water, so a steady supply protects the newest growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeds chlorophyll directly\u003c\/strong\u003e - magnesium sits at the centre of the chlorophyll molecule - short magnesium means pale leaves whatever the nitrogen reads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks under hard lighting\u003c\/strong\u003e - high-intensity LED and CDM raise demand well past what a base feed alone carries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible across the range\u003c\/strong\u003e - mixes with the TriPart and DualPart programmes without upsetting the ratio\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInterveinal yellowing and crispy leaf tips under strong light\u003c\/h3\u003e\u003cp\u003eYellowing between the veins of older leaves with the veins still green is classic magnesium shortage, and brown crisping on the youngest leaf tips is usually calcium. Both look like \u003cstrong\u003enutrient burn\u003c\/strong\u003e and both get worse the harder you drive the lights. On soft or RO water the base feed cannot cover it, and pushing EC higher makes matters worse rather than better.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft or RO water:\u003c\/strong\u003e \u003cstrong\u003e1 ml per litre\u003c\/strong\u003e as standard, added to plain water before the base feed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard water:\u003c\/strong\u003e usually unnecessary - test first, and only add if a deficiency is visible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-intensity lighting:\u003c\/strong\u003e up to \u003cstrong\u003e2 ml per litre\u003c\/strong\u003e through peak flower where transpiration is highest\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar correction:\u003c\/strong\u003e \u003cstrong\u003e2 ml per litre\u003c\/strong\u003e as a light mist for a fast fix, lights off, avoiding open flowers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixing:\u003c\/strong\u003e never add alongside a concentrated phosphate feed - add to water first and stir\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Calcium and magnesium supplement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest for:\u003c\/strong\u003e Reverse osmosis, rainwater and soft supplies under roughly 100 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical dose:\u003c\/strong\u003e 1 to 2 ml per litre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar:\u003c\/strong\u003e 2 ml per litre, lights off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with:\u003c\/strong\u003e TriPart, DualPart and the Pro Organic range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e All - soil, coco and hydroponics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"hcs-dosing\" style=\"margin:32px 0 0;border:1px solid #e6e6e6;border-radius:12px;overflow:hidden;font-family:Montserrat,-apple-system,'Segoe UI',sans-serif;\"\u003e\n\u003cdiv style=\"background:#101010;padding:16px 20px;border-bottom:3px solid #efc04c;\"\u003e\n\u003cdiv style=\"color:#ffffff;font-size:17px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;\"\u003eFeed Chart\u003c\/div\u003e\n\u003cdiv style=\"margin-top:6px;color:#b8b8b8;font-size:12px;line-height:1.5;\"\u003eTerra Aquatica Calcium Magnesium Supplement · soil, coco and hydroponics\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;color:#2b2b2b;background:#fff;\"\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003cth style=\"text-align:left;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;\"\u003eStage\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 14px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 1 L\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 10 L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eSoft or RO water — standard rate\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e1 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e10 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fcfaf4;\"\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eHigh-intensity lighting, through peak flower\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e2 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e20 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eFoliar correction — light mist, lights off\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e2 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e20 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#101010;padding:12px 20px;font-size:12px;color:#b8b8b8;line-height:1.6;\"\u003e\n\u003cspan style=\"color:#efc04c;font-weight:600;\"\u003eNote\u003c\/span\u003e — On hard water this is usually unnecessary — test first and only add if a deficiency is visible. Add it to plain water BEFORE the base feed, and never alongside a concentrated phosphate feed. Avoid spraying open flowers. Check pH and EC after mixing.\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Terra Aquatica","offers":[{"title":"500ml","offer_id":53496868962570,"sku":"NUT-TAQ-002-01","price":7.99,"currency_code":"GBP","in_stock":true},{"title":"1L","offer_id":53496868995338,"sku":"NUT-TAQ-002-02","price":11.49,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":53496869028106,"sku":"NUT-TAQ-002-03","price":28.49,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":53496869060874,"sku":"NUT-TAQ-002-04","price":54.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/nutrients-1l-terra-aquatica-calcium-magnesium-supplement-37666587214039.png?v=1786221346","url":"https:\/\/hydrocropshop.co.uk\/products\/terra-aquatica-calcium-magnesium","provider":"Hydro Crop Shop","version":"1.0","type":"link"}