Magnesium Deficiencies

  1. The Importance Of Using CalMag Supplements

    The Importance Of Using CalMag Supplements
    Calcium and magnesium are the most abundant minerals in tap water and will influence the water hardness. Soft water, usually found in the Western/Northern parts of the UK, generally has an EC of below 0.4 and doesn’t contain much calcium or magnesium
  2. New From Plant Magic Plus: Oldtimer Organic Magnesium & Pure Clean

    New From Plant Magic Plus: Oldtimer Organic Magnesium & Pure Clean
    Two new products from the UK’s Plant Magic Plus are now available at Holland Hydroponics. Firstly, the much anticipated Oldtimer Organic Magnesium. A granule based supplement available in 400g tubs that can be used as a prevention, as well as a cure, for magnesium deficiencies. For a prevention, simply add one scoop to 10 litres of water and feed once during veg then again around week 5 of bloom

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