Frequently Asked Questions
What's the dose for Mag Cal?
1-2ml per litre.
When do I use Mag Cal?
Throughout the entire grow, as needed.
Do I need Mag Cal if I'm growing in coco?
Yes — coco uses up calcium and magnesium faster than soil, which naturally contains some already, so Mag Cal provides a readily available source that helps prevent deficiencies before they show.
Is Mag Cal only for coco growers?
No, it's most important in coco but can be useful in other media too.
Description
Monkey Mag Cal is an important additive if you are growing using coco as the substrate, although you may find it necessary in other media too.
- Dilution / Dose
- 1–2ml per litre
- When To Use
- Throughout the entire grow, as needed
- Substrate Fit
- All media — especially important in coco
- Grower Notes
- Coco uses up calcium and magnesium faster than soil, which naturally contains some already.
It provides a readily available source of calcium and magnesium, preventing deficiencies before they become apparent.
These two vital elements are used up quicker in coco grows than soils, as soil naturally contains some already. A lack of magnesium and calcium will lead to all manner of issues and your end yield will be affected while the plant suffers the consequences.
Adding Mag Cal is a great way to maintain a healthy plant that can grow without restriction.
Monkey Nutrients are a UK company and all products are made here.
How much Monkey Nutrients does your grow actually need?
Tell us your medium, pot size and plant count. The Feed Chart Calculator builds your week‑by‑week chart with target EC, works out every bottle for the whole run, and puts them straight in your basket. You can price Monkey Nutrients against seventeen other brands while you are there.
