Starting my first indoor grow. Have a few outdoors under my belt.
4x3 AC Infinity tent
SpiderFarmer SF4000 LED
3gal fabric pots
I am going to grow in FFOF, adding Natures Living Soil and Earth Worm Castings for the plants feeding. As you can tell, I am looking to keep this pretty organic. In reading more and more into indoor growing, I am learning that additional Cal Mag supplement is necessary, specially in such small pots.
My question is, what would be a good organic way to add cal mag? Looking to stray away from bottled supps as much as possible. I’ve considered adding dolomite lime, but also am fearful it will alter the soil PH?
Lastly, I plan on periodically feeding with compost teas using the Natures Living Soil, and top dressing as well. Is it possible this in itself will add enough additional cal mag along the way to not need to supplement anymore?
Thanks in advance!