Calmag (Biobizz)

Give your plants the calcium and magnesium boost they need to thrive. Biobizz Calmag is a 100% organic formula crafted for growers of all kinds. Loaded with plant-available minerals, Calmag strengthens your plants’ cell walls, fuels photosynthesis, and helps prevent stress and deficiencies, promoting a top-shelf harvest every time.

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Volume: 250 ml £4.31
  • Volume: 250 ml £4.31
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Calmag - Biobizz: For Healthier Cells, Bigger Blooms, and Better Yields

Do your plants need extra support? Give it to them organically with Biobizz Calmag. Ideal for growers using soft tap water or RO setups (where calcium or magnesium deficiencies are common), Calmag is here to give your plants that little extra nudge whenever they need it.

Calcium and magnesium might not appear on NPK formulas, but they’re vital for healthy plant development. Both play central roles in cell structure, photosynthesis, and flowering. Unfortunately, regular water sources often lack these minerals, making deficiencies a common problem for growers in all setups and of all skill levels.

Luckily, Calmag provides your plants with all the calcium and magnesium they need in a 100% organic formula. Whether you’re supporting your plants or correcting a deficiency, Calmag is the perfect companion to your grow.

How to Use Biobizz Calmag

Calmag can be used throughout your entire grow alongside Biobizz Grow and Bloom nutrients. Adjust your dose based on your medium and whether you’re correcting or preventing a deficiency:

For prevention:

  • In coco, hydro, or light soil: Use 0.5 ml per litre of water from veg to early bloom, and 1 ml per litre up until harvest.
  • In regular soil: Use 0.3 ml per litre from veg to early bloom, 0.5 ml during mid bloom, and 0.8 ml during late flowering.

For deficiency correction:

  • In coco, hydro, or light soil: Use 0.5–0.8 ml per litre of water from veg to early bloom, and 1–1.4 ml per litre up until harvest.
  • In regular soil: Use 0.3–0.8 ml per litre from veg to early bloom, 0.5–0.8 ml during mid bloom, and 0.8–1.2 ml during late flowering.

Certifications

  • Control Union Certifications: National Organic Program (NOP) Input
  • Control Union Certifications: Organic EU Input
  • Ecocert certification: Compliance Use in Organic Farming
  • EnvirOganic
Calmag (Biobizz) data sheet
Form Liquid
Type Additives & boosters

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Calmag (Biobizz)
Calmag (Biobizz)
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