- You cannot place a new order from your country (United States).
search
Plagron CalMag Pro 0,5l
Plagron CalMag Pro 0.5L delivers bioavailable calcium and magnesium to correct the mineral deficit inherent in reverse osmosis (RO) water and naturally soft water sources. The sulphate-free NPK formulation (5-0-0) with 4.1% calcium and 2% magnesium ensures both elements are absorbed without ionic competition. At a maximum dosage of 1 ml per litre of water applied at every watering, this 500 ml bottle produces up to 500 litres of mineral-corrected nutrient solution. Particularly critical for LED grow setups where reduced transpiration limits passive calcium and magnesium transport to foliage. Order from plantandflower.be for fast shipping across Belgium.
Plagron CalMag Pro 0.5L – Precision Mineral Correction for RO and Soft Water
Reverse osmosis filtration removes contaminants but simultaneously strips water of essential minerals. Without calcium and magnesium correction, every subsequent nutrient addition operates on a flawed foundation. Plagron CalMag Pro 0.5L is engineered to restore optimal mineral baseline levels before base nutrients are introduced – the critical first step that separates methodical growers from guesswork.
The Science of Sulphate-Free Ca/Mg Delivery
Most calcium-magnesium supplements on the market contain sulphates as carrier ions. The problem: sulphate ions create ionic competition at root absorption sites, reducing the effective uptake of both calcium and magnesium. CalMag Pro eliminates this bottleneck entirely. Its sulphate-free formulation allows both minerals to be absorbed simultaneously through the root system at maximum efficiency. The result is measurably better mineral availability compared to conventional Ca/Mg products.
Why LED Growers Need CalMag Pro
- Reduced infrared emission: LED fixtures produce significantly less radiant heat than HPS lamps, lowering leaf surface temperature and reducing transpiration rates by up to 30-40%.
- Compromised passive transport: calcium and magnesium travel to leaves primarily via the transpiration stream. Lower transpiration directly reduces mineral delivery to actively growing tissue.
- Targeted compensation: CalMag Pro provides precisely the minerals that reduced transpiration can no longer mobilise, preventing the characteristic Ca/Mg deficiency symptoms common in LED setups.
Application Protocol
Shake thoroughly before use. Add CalMag Pro first to your water reservoir, before any base nutrients or additives. Maximum dosage: 1 ml per litre of water (1:1000). For RO water, Plagron recommends 0.75 ml/L to achieve a starting EC of 0.4. Apply at every watering throughout the complete cultivation cycle. The 0.5L format yields up to 500 litres of mineral-corrected solution. CalMag Pro is compatible with all substrates and growing systems, including recirculating hydroponics. Follow with your preferred Plagron base nutrient line.
Technical Specifications and Complementary Products
CalMag Pro delivers NPK 5-0-0 with CaO 5.7% and MgO 3.3% (elemental Ca 4.1%, Mg 2%). For comprehensive cell wall reinforcement, pair with Silic Rock 0.5L which adds silicon deposition to the structural matrix. Enhance root zone development by combining with Power Roots 0.5L for accelerated root establishment in the vegetative phase.
Order Plagron CalMag Pro 0.5L from plantandflower.be – Belgium's specialist growshop with fast nationwide delivery. Establish the mineral foundation your nutrient programme demands.
How much CalMag Pro 0.5L should I use per litre of RO water?
Plagron recommends 0.75 ml of CalMag Pro per litre of RO water to achieve an ideal starting EC of 0.4. The maximum dosage is 1 ml per litre. Always add CalMag Pro first, before introducing base nutrients or stimulators.
Why is CalMag Pro essential for LED grow setups?
LED fixtures emit less infrared radiation than HPS lamps, reducing leaf temperature and transpiration. Since calcium and magnesium are primarily transported via the transpiration stream, lower transpiration rates lead to reduced mineral uptake. CalMag Pro compensates for this specific deficit.
Is CalMag Pro compatible with hydroponic growing systems?
CalMag Pro is fully compatible with all growing systems including NFT, DWC, aeroponics, coco coir, and soil. The sulphate-free formulation prevents precipitate formation in recirculating systems, ensuring clean lines and consistent delivery.
What makes CalMag Pro different from standard calcium-magnesium supplements?
CalMag Pro uses a sulphate-free formulation that eliminates ionic competition between calcium and magnesium at root absorption sites. Conventional Ca/Mg products containing sulphates force both elements to compete for uptake, reducing the effective absorption of each mineral.
