In StockMills Calmag
£28.75
Online price · 10% online discount included
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This item is too big for our parcel service, so we don't sell it for delivery on the website. Collect it from our Bristol shop, or ask us for a delivery price.
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Description
Mills CalMag provides Calcium and Magnesium when needed.
If you are living in a soft water area, or use a Reverse Osmosis filtration system, Mills CalMag will raise EC levels to the correct base level before blending your nutrient solution.
- Buffers Soft/RO water.
- Promotes plant growth
.
Mills CalMag is available in 1l and 5l sizes.
Key facts
| Type | Calcium and magnesium supplement |
|---|---|
| Use | Buffers soft tap water and reverse osmosis (RO) water |
| What it does | Raises the EC of the water to the right base level before you mix the feed |
| Sizes | 1 and 5 litres |
| Brand | Mills Nutrients |
| Category | CalMag Additives |
How to use
If you live in a soft-water area or use RO water, add Mills CalMag to the water first, at the rate on the label, to bring the EC up to the base level. Then mix in the rest of your feed.
A pH and EC meter lets you check the base EC before you add anything else. See all our CalMag additives.
Questions
Do I need CalMag?
Mostly if your tap water is soft or you use reverse osmosis water. Both carry little calcium and magnesium, and Mills CalMag puts them back before you mix the feed.
How much do I add?
Follow the rate on the label, and use an EC meter to bring the water up to the base level before you add the rest of the feed.
Growers’ guides
- Cal-Mag Guide: Calcium and Magnesium Deficiency in PlantsWhat cal-mag is, who needs it, how to tell calcium, magnesium, nitrogen and iron deficiency apart, and how the cal-mag products we sell compare.
- Reverse Osmosis (RO) Water for Growing: Do You Need a Filter?What reverse osmosis (RO) water is, why growers use it on hard tap water, the RO filters we sell, what to add back, and when you can do without one.
- pH and EC: Meters, Test Kits and pH Up/DownHow to test pH with a meter or a pH test kit, measure EC, read the makers' targets, use pH Up and pH Down, and calibrate and care for a meter.
