Monkey Nutrients Mag Cal – Calcium and Magnesium Additive
Monkey Nutrients Mag Cal – Calcium and Magnesium Additive
£16.95 per litre · 1L
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Spend £82.05 more for free delivery
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Description
Stop Yellowing Leaves Before They Cost You Yield
Monkey Nutrients Mag Cal is a calcium and magnesium additive built to head off the shortages that slow growth and weaken plant structure. It supplies a readily available source of both elements so plants keep building strong tissue, absorbing nutrients efficiently and developing steadily through the cycle. Calcium and magnesium are especially important in coco-based systems, where they deplete faster than in soil.
Key Benefits
- Readily available calcium and magnesium for a fast top-up
- Heads off Cal-Mag shortages common in coco and hydroponics
- Strong cell structure and steady plant development
- Improved nutrient uptake and overall plant vigour
- Stable veg and flowering performance
- All media: suits hydroponics, coco and soil
Yellowing leaves and weak growth from a Cal-Mag shortage?
Calcium and magnesium shortages are common indoors, especially with coco or purified water. Left unchecked they show as yellowing leaves, weak growth and poor nutrient uptake, chipping away at vigour and eventual yield. Mag Cal keeps both elements available so plants grow without restriction, supporting strong vegetative growth and steady flower development in hydroponic systems, coco or soil.
How to Use
- Dose: 0.5-1ml per litre of water added to your nutrient solution
- Method: shake well, mix thoroughly before adding other nutrients
- Timing: use during vegetative growth and early flowering as needed
- All media: suitable for hydroponics, coco and soil
| Stage | Per 1 L | Per 10 L |
|---|---|---|
| Vegetative growth and early flowering, as needed | 0.5–1 ml | 5–10 ml |

FREE Express Delivery on orders over £99. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.


