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Cal Mag eXtreme

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Cal Mag eXtreme
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New - Choose either our Commercial or our Pro Grower label at checkout.

The need for Calcium and Magnesium in bloom is great. While being classified as micro nutrients they are just as important as NPK. We have added Iron and Vitamin B-1 to help magnesium’s role play with phosphorous. Flying Skull will always be trying to find better ways for the master gardener to better his crop and continue to manufacture only the finest formulations for plant growth and insect/fungus control.

5 Star Products, all the time!

Use Cal-Mag eXtreme  as a leaf feed to correct  leaf curl. Leaf curl or leaf deformation can occur after an application of soil or foliar fed plant food, pesticide or fungicide. Use 1-2 tsp per gallon of water. Allow 24 to 48 hours for the plants to return to normal. Always make sure your plants are fully hydrated before applying pesticides or fungicides to leaves. To do this, add Cal-Mag eXtreme to water until you have added 200 PPM/0.4 EC. Flush the growing media with Cal-Mag eXtreme until the runoff matches the EC/PPM of the flush.  Add Z7 to the water before adding the Cal-Mag eXtreme.

When feeding the soil make sure the EC / PPM of the fertilizer feed match the runoff from the pot. This is critically important to maintain the proper osmotic transfer of minerals and water into the roots. Use an EC/PPM meter to make the match. Cal-Mag eXtreme can be used to help flush excess minerals from the soil. This will help to correct leaf curl, leaf drop, yellow leaf, tip burn and red and purple stems; all signs of nutrient deficiencies and toxicities caused by fertilizer buildup in the growing media. Always add Z7 to the water before adding the Cal-Mag eXtreme.

Shake before using.

Soil or Soilless potted plants:
Use 1 tsp (5 ml) per gallon (4L) of water. Application may be increased to 2 tsp per gallon if needed.

Hydroponic Systems:
Use 1 tsp (5 ml) per gallon (4L) of nutrient solution. Application may be increased to 2 tsp per gallon if needed.

For best results: Use in combination with your standard fertilizer program.



Total Nitrogen (N)2.0%
Calcium (Ca)3.2%
Magnesium (Mg)1.2%
      1.2% Water Soluble Magnesium
Iron (Fe)0.1%
      0.1% Water Soluble Iron


Derived from: Calcium Nitrate, Magnesium Nitrate, Iron EDTA.

1 Product Reviews - Average rating 5 / 5 (View All Reviews)

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Works great and costs less

Bob J - 11/26/2012

What's not to like about this Cal Mag. Plants look great so far. I am using the Z7 also. Plants look better than they have for a long time. You guys should think about selling your products in more places. It can be hard to get them.

Thanks for the help!

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