Grow Mediums Autopots with BioTabs and RO Water Question

[RenaissanceMan]

Here's my setup:
Seeds: Mephisto genetics
Irrigation: 15L autopots
Medium: soil
Nutrients: 3 biotabs per pot
Light source: quantum boards
Water: RO water + CalMag 5ml/gal + 1.25ml/gal trace elements = 400PPM - my tapwater is awful, so that's not an option
Unsure of PH - part of my motivation to go organic soil is to eliminate the need to us ph water and deal with mixing nutes

QUESTION: What should I do to my RO water to prevent nutrient lockout and prevent other difficulties that could arise?

I've read some people using straight RO water, but I'd be worried about calmag deficiencies with LED lights. I've read about other, with similar setups, using calmag (no additional trace elements) to about 150ppm. I'm finishing up my first autopot run and experienced nutrient lock towards the end, so I'm hoping to figure out what I did wrong for the next run. It seems obvious the build-up of 400PPM water over time is what caused the nutrient lockout, but where's the sweet spot?

What's working for you? Any help/suggestions will be greatly appreciated! Cheers!

 

[Jopez]

Hi,
What was it, deficiencies or over fertilization?

 

[Saven]

Hi,
What was it, deficiencies or over fertilization?

This post was from April 3, 2020 Jopez. You're a hero for trying to still help 8 months later.

 

[Jopez]

Ups... Sorry:smoking: