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Plagron CalMag Pro

Plagron CalMag Pro


Plagron CalMag Pro is an extremely important secondary macronutrient. Soft water areas have lower levels of these key nutrients, so in some instances, it's important to supplement with them, and Plagron Calmag Pro is perfect for the job. Calmag is also useful for growers running reverse osmosis units and for treating deficiencies.

Plagron CalMag Pro


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Plagron CalMag Pro - 500ml:
Plagron CalMag Pro - 1L:
Plagron CalMag Pro - 5L:

Plagron Calmag Pro - Increases Calcium & Magnesium Levels in Soft Water Areas


Calcium is especially important during the vegetative growth stages. Like silicon, it helps to strengthen cell walls, which promotes vigorous growth and more robust structures. Calcium is vital for transporting nutrients around the plant.


Magnesium is a vital component in the formation of the chlorophyll molecule. Chlorophyll is responsible for giving plants their green color and it is used in the process of photosynthesis, where plants take energy from your grow light and use it to split CO2 into carbon and oxygen. The carbon is then used by the plant and the oxygen is released as a waste product.


Key Features:

  • Ideal for increasing the EC levels of RO water and soft water
  • Great for treating deficiencies of calcium and magnesium
  • Strengthens the cell walls and increases resistance to stress
  • Promotes rapid root development and improves nutrient uptake
  • Generally used at around 1ml per liter


Explore our top picks for stellar yields! Our best-sellers range from spacious grow tents and efficient LED grow lights to premium hydroponic nutrients and plant propagation must-haves. We have everything you need, no matter what you dream of growing!
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