{"product_id":"canna-calmag-agent","title":"CANNA CALMAG AGENT – Calcium \u0026 Magnesium Water Conditioner","description":"\u003ch2\u003eCANNA CALMAG AGENT – Calcium \u0026amp; Magnesium Water Conditioner\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCANNA CALMAG AGENT\u003c\/strong\u003e is a concentrated calcium and magnesium water conditioner developed to prepare soft and reverse-osmosis (RO) water for use with CANNA nutrient programmes. It is designed to raise low starting EC to an appropriate mineral level before base nutrients and additives are introduced.\u003c\/p\u003e\n\u003cp\u003eCANNA formulates its nutrient programmes around suitable source water with an EC of approximately 0.4 mS\/cm. Where source water contains insufficient dissolved minerals, CALMAG AGENT can be used to raise the starting EC and provide additional calcium and magnesium before the normal feeding programme is mixed.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for soft water:\u003c\/strong\u003e Helps condition source water with a starting EC below CANNA's recommended level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for RO water:\u003c\/strong\u003e Reintroduces useful mineral content after reverse-osmosis filtration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContains calcium and magnesium:\u003c\/strong\u003e Provides two important mineral elements that may be present at insufficient levels in very soft or RO water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargets a starting EC of 0.4 mS\/cm:\u003c\/strong\u003e CANNA recommends adding CALMAG AGENT until the source water reaches approximately 0.4 mS\/cm before adding the normal nutrient programme.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighly concentrated:\u003c\/strong\u003e Typical application is only 0.1–0.5 mL per litre, depending on source-water EC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for all growing media:\u003c\/strong\u003e Can be used when preparing nutrient solutions for coco, peat-based substrates and hydroponic growing systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with CANNA feeding programmes:\u003c\/strong\u003e Used to condition the water before normal CANNA base nutrients and additives are added.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat Does CANNA CALMAG AGENT Do?\u003c\/h3\u003e\n\u003cp\u003eWater quality can have a significant effect on nutrient management. Very soft and reverse-osmosis water contains relatively few dissolved minerals and may provide insufficient calcium and magnesium for the nutrient programme it is being used with.\u003c\/p\u003e\n\u003cp\u003eCANNA CALMAG AGENT is used to condition this water before nutrients are mixed. Rather than applying a fixed dose regardless of water quality, CANNA recommends measuring the starting EC and adding CALMAG AGENT until the water reaches approximately \u003cstrong\u003e0.4 mS\/cm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eCANNA CALMAG AGENT Dosage\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWater Volume\u003c\/th\u003e\n\u003cth\u003eCANNA CALMAG AGENT\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 litre\u003c\/td\u003e\n\u003ctd\u003e0.1–0.5 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 litres\u003c\/td\u003e\n\u003ctd\u003e1–5 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 litres\u003c\/td\u003e\n\u003ctd\u003e2.5–12.5 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 litres\u003c\/td\u003e\n\u003ctd\u003e5–25 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 litres\u003c\/td\u003e\n\u003ctd\u003e10–50 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e these figures represent CANNA's dosage range, not a requirement to use the maximum amount. The correct quantity depends on the EC and mineral content of the source water. Add only enough CALMAG AGENT to bring suitable soft or RO water to approximately \u003cstrong\u003e0.4 mS\/cm EC\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to Use CANNA CALMAG AGENT\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eShake the bottle thoroughly before use.\u003c\/li\u003e\n\u003cli\u003eFill the nutrient reservoir with water at approximately 20–22°C.\u003c\/li\u003e\n\u003cli\u003eMeasure the starting EC with a calibrated EC meter.\u003c\/li\u003e\n\u003cli\u003eAdd CANNA CALMAG AGENT gradually at approximately 0.1–0.5 mL per litre.\u003c\/li\u003e\n\u003cli\u003eMix thoroughly and recheck the EC.\u003c\/li\u003e\n\u003cli\u003eContinue until the water reaches approximately 0.4 mS\/cm EC.\u003c\/li\u003e\n\u003cli\u003eAdd the normal recommended base nutrients and additives after the source water has been conditioned.\u003c\/li\u003e\n\u003cli\u003eCheck the final EC and pH before irrigation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eUsing CANNA CALMAG AGENT with RO Water\u003c\/h3\u003e\n\u003cp\u003eReverse-osmosis filtration removes a high proportion of dissolved minerals from source water. This can be useful where tap water contains excessive or undesirable dissolved salts, but it also removes calcium and magnesium.\u003c\/p\u003e\n\u003cp\u003eCANNA CALMAG AGENT can be added to RO water to restore mineral content and raise the starting EC to approximately 0.4 mS\/cm before the main nutrient programme is added.\u003c\/p\u003e\n\u003ch3\u003eDo You Need CALMAG AGENT with Normal Tap Water?\u003c\/h3\u003e\n\u003cp\u003eNot necessarily. CANNA considers water around the normal mineral range suitable for its nutrient programmes without additional CALMAG AGENT. The product is primarily intended for soft, very soft and RO water rather than being an additive that automatically needs to be included in every nutrient reservoir.\u003c\/p\u003e\n\u003cp\u003eMeasure the source-water EC before deciding whether CALMAG AGENT is required.\u003c\/p\u003e\n\u003ch3\u003eHard Water \u0026amp; Poor-Quality Source Water\u003c\/h3\u003e\n\u003cp\u003eCALMAG AGENT should not simply be added to hard water that already contains substantial mineral content. Where source water has a high EC, CANNA recommends assessing the water quality and, where appropriate, using reverse-osmosis water to reduce unwanted dissolved minerals before rebuilding the starting water to the required EC.\u003c\/p\u003e\n\u003ch3\u003eSuitable Growing Media\u003c\/h3\u003e\n\u003cp\u003eCANNA CALMAG AGENT can be used to prepare water for nutrient programmes across a wide range of horticultural growing media, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCoco coir\u003c\/li\u003e\n\u003cli\u003ePeat-based growing media\u003c\/li\u003e\n\u003cli\u003eRockwool\u003c\/li\u003e\n\u003cli\u003eClay pebbles\u003c\/li\u003e\n\u003cli\u003eOther hydroponic substrates\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003cp\u003eCANNA CALMAG AGENT is available in \u003cstrong\u003e1 litre, 5 litre and 10 litre\u003c\/strong\u003e sizes.\u003c\/p\u003e\n\u003ch3\u003eStorage \u0026amp; Important Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKeep the bottle tightly sealed.\u003c\/li\u003e\n\u003cli\u003eStore only in the original container.\u003c\/li\u003e\n\u003cli\u003eProtect from direct sunlight, heat and frost.\u003c\/li\u003e\n\u003cli\u003eCANNA recommends a storage temperature of 10–30°C.\u003c\/li\u003e\n\u003cli\u003eKeep out of reach of children.\u003c\/li\u003e\n\u003cli\u003eAlways assess source-water EC before deciding how much CALMAG AGENT to use.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CANNA","offers":[{"title":"1LTR","offer_id":42178915270816,"sku":"CANNA-CALMAG-01L","price":12.95,"currency_code":"GBP","in_stock":true},{"title":"5LTR","offer_id":42178918645920,"sku":"CANNA-CALMAG-05L","price":39.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0565\/5370\/1536\/files\/CANNA_Calmag_Agent.png?v=1789636942","url":"https:\/\/steelroots.co.uk\/products\/canna-calmag-agent","provider":"Steel Roots ","version":"1.0","type":"link"}