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Shogun CalMag is a product rich in nitrogen, calcium, magnesium, and a small percentage of iron, ideal for correcting nutritional deficiencies or for increasing the electrical conductivity level in our irrigation water with a low EC level.
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Description
Shogun Fertilisers CalMag is a rich combination of Calcium, Magnesium, and Nitrogen, perfect for increasing EC in reverse osmosis or distilled irrigation water. It can also be used as a deficiency corrector and a stimulator for growth and flowering stages. This product is formulated with high-quality minerals and high concentrations, resulting in a high-performance product.
Cannabis needs calcium and magnesium for basic developmental processes: growth, photosynthesis, and nutrient movement throughout the plant. If the plant lacks these nutrients, we will likely get low and poor-quality yields, as they are vital for proper development. That's why Shogun CalMag is the ideal product; the minerals it contains are designed for rapid assimilation, providing visible results within 24 hours in cases of nutritional deficiencies. The addition of nitrogen and iron to the mixture makes this product more complete, helping to restore vitality and lost greenness. Furthermore, its versatility allows us to apply it via irrigation and/or foliar spray, with foliar application being the fastest option to correct deficiencies.
CalMag is also perfect as an additive to raise the EC of the base water we work with, especially if it's distilled or reverse osmosis filtered water with an EC of 0.0. We simply need to add 1 to 2 ml/L to our irrigation water, mix well, and check the EC level until the desired level is reached, which is usually 0.4.
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CalMag reviews
26/08/2025
I use it with RO water and you really notice a huge difference. The plants gain so much strength... It is essential for our flowers to turn out perfect. Do you need to increase the dosage during flowering?
Translated from Spanish
Lo uso con agua de ósmosis y se nota una barbaridad. Las plantas cogen una fuerza... Es indispensable para que nuestras flores salgan perfectas. ¿Hay que subir la dosis en floración?
09/08/2025
Top product! Since I started using it, I've had zero deficiency issues with my little plants. Leaves are an amazing green and the flowers are developing beautifully! Thanks!
Translated from Portuguese
Produto top! Desde que comecei a usar, nunca mais tive problemas de carências nas minhas plantinhas. As folhas estão com um verde incrível e as flores estão a desenvolver-se que é uma beleza! Obrigada!
02/03/2024
This product has helped me a lot with my nutritional deficiencies.
Translated from Spanish
Este producto me ha ayudado mucho con mis carencias nutricionales.