{"product_id":"matrix-cal-mag-1-l","title":"Matrix Cal\/Mag 1 L","description":"\u003ch2\u003eMatrix Cal\/Mag 1 L – calcium and magnesium supply for RO water and coco\u003c\/h2\u003e\n\u003cp\u003eGrowing with soft tap water, an RO filter or in coco? Then Cal\/Mag is less of an extra and more of a fixture, and the 1 L bottle is the practical size to keep on the shelf for one or two tents.\u003c\/p\u003e\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMatrix Cal\/Mag\u003c\/strong\u003e from the Matrix MTX line by Fenix MTX (Germany) adds \u003cstrong\u003ecalcium and magnesium\u003c\/strong\u003e to your feed. Calcium supports nutrient uptake, while magnesium keeps photosynthesis running until harvest. Its real value shows in the final weeks of flower: by then, fast-growing plants have often stripped the substrate, and shortages show up as weak growth or yellowing leaves at the worst possible moment.\u003c\/p\u003e\n\u003ch3\u003eDosing\u003c\/h3\u003e\n\u003cp\u003eFollow the Matrix MTX feeding schedule on the label; Fenix does not publish a fixed ml\/L on its product page. Give a little extra attention late in flower and whenever your water is very soft.\u003c\/p\u003e\n\u003ch3\u003eMixing order\u003c\/h3\u003e\n\u003cp\u003eFill your tank or can with water, add Cal\/Mag first and stir, and only then add your base nutrients and other additives. Putting calcium into an already concentrated mix can cause it to bind with other elements and drop out. Check EC and pH at the end. Shake the bottle before every use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContents:\u003c\/strong\u003e 1 L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElements:\u003c\/strong\u003e calcium (Ca), magnesium (Mg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e liquid\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Matrix MTX","offers":[{"title":"Default Title","offer_id":58744070570328,"sku":"C8MTX01120","price":9.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1016\/9584\/8792\/files\/c28d8ff1d940dd2193d754da37b30dcf.png?v=1791813240","url":"https:\/\/growdealz.com\/products\/matrix-cal-mag-1-l","provider":"Growdealz","version":"1.0","type":"link"}