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Biobizz Calmag 1 l
The 1 L bottle is the size for several runs, covering 715 to 3330 litres of solution, a figure rounded down. Calmag is only for reverse osmosis or soft water, against a calcium and magnesium shortfall, with separate figures for medium and for hydro and coco.
Calcium magnesium supplement Biobizz 1 L - organic line
Between 0.3 and 1.4 ml/L depending on the week and the medium, a litre covers 715 to 3330 litres of solution. Calmag is a supplement rather than a fertiliser: it fills in what reverse osmosis and soft water leave out. That is twice what the 500 ml gives, on the same table.
Two tables, not one
The dose follows the medium, and nowhere else in this line do the two columns diverge this far. In medium, give 0.3 ml/L in weeks 1 to 6, then 0.5 ml/L in weeks 6 to 8 and 0.8 ml/L in weeks 8 to 10. In hydro and coco the same sequence starts at 0.5 ml/L in weeks 1 to 6 and moves to 1 ml/L from week 6. If a deficiency shows anyway, the figure rises to 1.2 ml/L in medium and 1.4 ml/L in hydro and coco.
- Medium, weeks 1 to 6: 0.3 ml/L preventively
- Hydro and coco, weeks 1 to 6: 0.5 ml/L preventively
- Late in the run, weeks 8 to 10 in medium: 0.8 ml/L
- Solution pH between 6.2 and 6.5
When the litre is the right size
At figures this low, the litre suits growers running several installations or working in hydro, where the doses are higher. For a single run in medium the 250 ml bottle is plenty. The table does not change with the size of the bottle.
Specifications
| Property | Value |
|---|---|
| Contents | 1 L |
| Type | liquid calcium and magnesium supplement |
| Condition of use | only with reverse osmosis or soft water |
| Medium, preventive | 0.3 ml/L in weeks 1 to 6; 0.5 ml/L in weeks 6 to 8; 0.8 ml/L in weeks 8 to 10 |
| Hydro and coco, preventive | 0.5 ml/L in weeks 1 to 6; 1 ml/L from week 6 |
| If a deficiency shows | up to 1.2 ml/L in medium and 1.4 ml/L in hydro and coco |
| Yield | 715 to 3330 litres of solution, rounded down |
| Also useful | on a lightly fertilised medium |
Works with
The same supplement comes in Calmag 250 ml and Calmag 500 ml. pH is handled separately, with Biobizz Bio-Up 250 ml. The rest of the line is in the Biobizz range; the measuring products sit in pH and EC control.
FAQ - preventive or corrective
What separates the two rows in the table?
One row is preventive, the other is for a shortfall that has already shown up and sits higher. On medium the preventive row runs from 0.3 ml/L in weeks 1 to 6 to 0.8 ml/L in weeks 8 to 10; the corrective row reaches 0.8 ml/L in the early windows and 1.2 ml/L in the last. In hydro and coco the ceiling is 1.4 ml/L. Under-dosing stays the safer side of either row.