Description
Calcium, magnesium and iron for RO water and hard-driven rooms
Sensi Cal Mag Xtra supplies calcium, magnesium and iron for growers on reverse osmosis or soft water, and for any room where high light intensity has pushed demand past what the base feed carries.
Key Benefits
- Three elements, not two - the iron matters as much as the calcium and magnesium
- Corrects RO and soft water - a filter removes exactly what this puts back
- Supports high-intensity lighting - LED and CDM raise transpiration and with it calcium demand
- Chelated iron - stays available across a wide pH band
- Works with any base - not restricted to the Advanced Nutrients programme
Yellowing between the veins under strong light
Interveinal yellowing on older leaves is magnesium, on newer leaves it is iron, and crisping tips are calcium. All three appear together on RO water under hard lighting, and all three look like they need more feed. Raising EC makes it worse.
How to Use
- RO and soft water: 1 ml per litre added to plain water before the base feed
- Hard water: usually unnecessary - test before adding
- High-intensity lighting: up to 2 ml per litre through peak flower
- Foliar: 2 ml per litre as a light mist, lights off
- Mixing: never alongside a concentrated phosphate feed
Technical Specifications
- Elements: Calcium, magnesium and chelated iron
- Best for: RO, rainwater and soft supplies
- Typical dose: 1 to 2 ml per litre
- Foliar: 2 ml per litre, lights off
- Compatible with: Any base feed
- Media: All
