In response to popular demand, CANNA has produced a CALMAG AGENT. You can use this product to raise the Calcium and Magnesium content of your soft water, which will increase the EC of it. It will improve your water to make sure your plant can grow strong and healthy.
 
Advantages of the CALMAG AGENT:

Fewer deficiencies

Increase in nutrient uptake

Stronger plants

Stimulates better quality flowers

Highly concentrated

Increases the EC of your water

Less nutrients required