What Else Should I Use With Maxigrow In Veg Using Ro Water

[Opiosrex]

Title says it should I use cal mag or anything else?

 

[MidwestToker]

From my experience Maxi works fine with out addition of cal-mag in RO, of course that would be cultivar depended.

 

[Opiosrex]

From my experience Maxi works fine with out addition of cal-mag in RO, of course that would be cultivar depended.

So does maxi grow already have a little calmag in it and would adding 200ppm worth of cal mag be to much then?

 

[MidwestToker]

I believe like 5-6% for the Maxi, I'd have to look on the bag.
Too much cal can be as detrimental as not enough to the point it locks out other nutrients.