AMPLE LEVELS OF CALCIUM & MAGNESIUM Keep your plants in optimum growing conditions with British Minerals Calmag. Containing the ideal ratio of calcium & magnesium, BM Calmag is perfect for correcting your water for optimum plant growth. British Minerals Calmag is highly concentrated, improves poor quality water & provides stronger, healthier plants. British Minerals Calmag can be used on all media types.
