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Green Planet Pro Cal - 1 Litre

Green Planet Pro Cal - 1 Litre - Calcium Magnesium Supplement - CalMag

Pro Cal is an excellent supplemental source of calcium, magnesium and iron. Plants engaged in rapid growth can often come up short on these essential elements so supplementation is a great idea. The savvy grower makes pro cal a must have in their arsenal of plant growing weapons.


  • Thickens cell walls

  • Helps form calcium pectate

  • Fully chelated iron

  • Important source of magnesium

  • Noticeable size increase

  • Improved enzyme function

  • Coco coir approved

  • Powerful formulation


  • 5 ml/gal throughout the vegetative stage.

  • 7 ml/gal for the flowering stage

  • Stop using prior to the flush week.

In the box:

  • 1 x Green Planet Pro Cal - 1 Litre