I need a lil assistance..

I've never used Ro water before , when I start changing out the Dwc buckets for the good water do I replace what the filter took out the tap water with nutrients.

Dwc Res right now 0.69ec with 0.13ec being the nutrients

After i filter the tap water I have 0.09ec so would I add 0.60ec of nutrients?
I just don't wanna make any mistakes

You need to use Calimagic or some type of calmag with RO water.

Yeah I looked into it buddy saw that with most base nutrients you should add cal-mag @ 150ppm's before you add the nutes , also saw Advanced Nutrients Connoisseur doesn't need it with Ro water because it has it in the base. Yeah I'm sceptical but after alot of reading I'm going to try it and see.

Cal-mag isn't in any of there feeding chart's either , there own cal-mag says on the bottle "not for use with any of there base nutrients" as sensi , maybe there GMB and definitely connoisseur has the correct amounts of Mg , Fe and Ca needed.

I'm suffering with Mg Def ,my waters crap and I can't get enough nutes in because the ec's already too high.

Once I can add more nutes that in theory should go away, if it doesn't then I will add the cal-mag