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Shogun CalMag is an additive that contains nitrogen, calcium, magnesium and a small amount of iron. These ingredients help to prevent nutritional deficiencies and increase EC in waters with low EC.

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CalMag by Shogun Fertilisers is a product that contains magnesium, calcium, iron and nitrogen, and it’s perfect for increasing EC in osmosis or distilled water. It can also help to protect your plants and correct any sort of deficiencies during the growth and flowering periods. It’s made out of quality minerals in high concentrations, making for a product that is well worth the investment.

Cannabis needs calcium and magnesium in order to begin the growing process as well as other processes such as growth, photosynthesis, and moving nutrients from one part of the plant to another. If your plant is missing these nutrients then your plants will probably give low quality yields. CalMeg is designed to be absorbed super-fast by your plants, showing results after just 24h if your plants are lacking nutrients. Its nitrogen and iron content make it one of the most complete products out there, helping your plant to recover from stress. It can be used by watering or spraying it onto your plants – the second way is much faster when it comes to fixing deficiencies.

 It can also be used as a base fertilizer to increase EC in your water if you’re using distilled or osmosis water, which has a 0.0 EC. Simply add it to your water at a ratio of 1-2ml per liter, mix it in thoroughly and check that your EC has reached 0.4 EC.


  • Highly concentrated products.
  • Made with quality, refined nutrients for fast absorption.
  • Helps mobility and PK absorption.
  • Stimulates growth and flowering.
  • Can be used to increase EC.
  • Increases chlorophyll yield.
  • Perfect for correcting nutritional deficiencies.
  • The perfect combination of calcium, magnesium, nitrogen and iron.

Dosage and how to use:

  • Apply 0.5ml/L with hard water during the first growth week until you begin flushing the roots.
  • Apply 0.5ml/L with soft water during the first growth week until you begin flushing the roots.
  • You can treat nutritional deficiencies by using this as a foliar spray, which also increases phosphorus and potassium absorption.
  • It can also be used to increase EC in purified water – 0.5ml/L until you reach the desired EC (0.4)


  • Nitrogen 3%
  • Phosphorus 0%
  • Potassium 0%
  • Calcium 3.2%
  • Magnesium: 1.2%
  • Iron: 0.1%

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CalMag Reviews

Después de que growbarato me diera a conocer una muestra de este producto.., lo compré tras ver resultados, evita carencias de maravilla y flotalece bastante y barato

Gracias por contar con nosotros Jose Luis.

Me viene muy bien para aportar equilibrio sobretodo al ph y la EC, ademas de otros elementos nutricionales. Esta funcionando bien

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