British Minerals Calmag 5L

British Minerals Calmag 5L is a premium calcium and magnesium supplement designed to support optimal plant nutrition in hydroponic systems. This 5-litre bottle delivers essential macro-nutrients that promote strong root development, vibrant foliage, and consistent yields across all growth stages.

Formulated for reliability and ease of use, Calmag prevents common deficiencies that can stunt growth or reduce quality. Simply add to your nutrient solution according to feeding schedules for balanced, professional-grade results.

Ideal for growers using soft water or reverse osmosis systems where calcium and magnesium levels need supplementation. Store in a cool, dry place away from direct sunlight to maintain potency.