I've read some where that if you have hard water you can add some to RO and distilled water to get some elements in there....

Is that true?
Doc Oc
imp:
Ocotillo Reviewed by Ocotillo on . CalMag+ in Coco? Do I need it? I'm currently only Day 10 in veg but was starting to wonder. Does Canna Coco A and B nutes (incl. PK 13/14) have trace minerals.. calc.. mag... and iron? Or should I be dosing a bit CalMag+ into my nutrient solution? Rating: 5