BioBizz Calmag Organic Calcium Magnesium Supplement

Organic calcium and magnesium for stronger, greener growth

Biobizz Calmag is a concentrated blend of calcium and magnesium made for hobby and professional growers alike. Both elements are essential: calcium builds cell walls and drives cell production, while magnesium sits at the centre of the chlorophyll molecule and underpins photosynthesis. Because it is an entirely natural, organic nutrient, it slots into a BioBizz organic feed programme without upsetting the biology of your soil or coco, and it works whether you are starting from hard water, soft water or reverse osmosis water.

Key Benefits

• Concentrated calcium and magnesium together, so there is no juggling two supplements.
• Entirely natural and organic, keeping an organic grow genuinely organic.
• Works with hard, soft and RO water, which makes it useful wherever you are in the UK.
• Supports cell production and photosynthesis, the two processes behind steady vegetative growth.
• Simple to add to an existing feed schedule without reworking your base nutrients.

Why Do Leaves Yellow When the Feed Looks Right?

Soft and reverse osmosis water carries almost nothing to begin with, so plants show yellowing between the veins, rusty spotting and slow growth even on a full-strength feed. That is not a shortage of base nutrients but of calcium and magnesium, and it soon becomes poor nutrient uptake because the plant cannot build tissue fast enough to use what you give it. Correcting the base water keeps uptake even and leaves dark.

How to Use

• Soil and light mix: add Calmag to plain water at the rate given on the label before anything else goes in.
• Coco: use with every feed where you are starting from RO or soft water, so the medium is never running short.
• Mixing order: Calmag into the water first, stir well, then add your base feed and boosters.
• pH: check and adjust only once the full solution is mixed, then water your plants directly.
• Storage: keep sealed, cool and out of direct sunlight, and shake before use.