So far for me, cal mag has helped my first run bounce back from most of the torture I have put them through. I’m new too, seeing as we just got rec here in mn. My problems have been nutrient burn and nutrient deficiency in that order and every other water in my homemade sip buckets have had cal mag just to keep up in straight coco even with the grow dots

Epsom salt for the win. You can add it to water to the soil and or foliar feed