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Category Grotek

Cal-Max by Grotek is a supplement of calcium, iron and magnesium that is used when using osmosis water with an EC of 0.0 in order to raise it and to cover the deficiencies of these elements in your plants.

Brand Grotek
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Cal-Max by Grotek is an additive specifically formulated to cover the deficiencies of calcium, magnesium and iron caused by the use of reverse osmosis and distilled water, which is used by marijuana growers.

Deficiencies in your plants often appear when plants have lacked these elements for a long time. Therefore, it’s advisable to avoid them by adding Cal-Max by Grotek as a preventive right from the start.

You can also use it to correct the deficiencies that are already visible in your plants. It’s recommended its combination with a foliar application for more immediate results.

Cal-Max by Grotek contains only high-quality ingredients that are 100% water-soluble. It can be safely used with any automatic irrigation system as there’s no risk of clogging the pipes or drippers. It’s suitable for any growing medium, hydroponic, NFT, aeroponic, soil or coco.

Dosage and usage of Cal-Max by Grotek:

In irrigation:

  • Add 1 to 2mL per litre of nutrient solution to irrigate your plants.
  • If you control the EC of your solution, you can adjust the quantities to your liking.

Foliar feeding:

  • Dissolve 1mL per litre and spray on both sides of the leaves.
  • Keep in mind that foliar applications are always done in low light conditions to avoid burns in your plants, just when the lights are turned off (indoors) and when the sun sets (outdoors).

Composition of Cal-Max by Grotek:

NPK 2-0-0

  • 2% Nitrogen
  • 3% Calcium
  • 1% Magnesium
  • 0.1% Iron chelates EDTA

WARNING! Grotek has drastically renewed its line of nutrients and has also formulated new compositions for the entire range of products, even changing the name of some of them. CAL-MAX (2-0-0 NPK) keeps its name and its efficiency.

Product details

Category Grotek Brand Grotek Reference Grotek UPC 17

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