CalMag+ in Coco? Do I need it?

[Weezard]

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?

Depends on what water you use.
How much, and what kind of "hardness".
Good hydro nutes have some calcium n magnesium but they still left my girls wanting.
I use coco but my tap water has very little calcium, (Volcanic Island), so I need to add tsp of CalMag per gallon.
Learned the hard way.

Aloha,
Weezard