Calcium Magnesium Supplement boosters
Do I need a Calcium Magnesium Supplement?
Your plants will tell you if they are in need of it.
If you are using a good nutrient and good water and fresh quality coco, there should not be any need for Cal-Mag.
Some strains of plant will need it despite everyone's best nutrient designs...
A lot of growers using Coco Coir growing media will need a supplement.
- you use a cheap coco which isn't buffered sufficiently or designed for Hydroponics
- you are reusing your coco so the buffering is no longer in the media
What Cal-Mag supplement should I use?
We recommend Grow research Calcium Magnesium supplement as it is easiest to use at 1ml per litre.
However most brands will be sufficient for your needs.