Potassium silicate is a beneficial supplement for your plants; one that will make them bigger, stronger and more resilient to diseases. Calcium magnesium is great because it helps regulate plant growth and productivity and ensures essential chlorophyll levels. These are best used in special circumstances and on an as-needed basis. Our base nutrient formulations are designed to include the required amounts of these elements and compounds when used as a complete system. However, Cal-Mag and Sturdy Stalk are beneficial (or necessary!) if you opt to combine different fertilizer brands or use certain growing media. For example, if you use pure, unbalanced coco coir, a calcium-magnesium supplement such as Cal-Mag is strongly recommended.
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