Looks good! I'm definitely subbed.
I haven't read the whole thread yet so I'll ask;
Does your system drain to waste? If so your ec is pretty high from my experience, especially in veg.
I personally keep mine around 1.2 and raise it up to around 1.4 in flower depending on the strain.
Indica dominant, not the OG's and Chems, can handle higher nutes than the Sativas.
I also like to flush it real good, once a week.
Honestly, running at a lower ec I still manage to burn the tips of the leaves by the time of the chop.
Hey Bud,
I am running DTW, I use either or both RO and rain water, both ppm @ around 5 ppm, I spoke with the folks at Canna and they suggested that I use my tap water (my tap is well over 800 ppm), to bring the solution to 120 ppm.
So instead of using my tap water I use Epsom and Cal/Magic
I picked this up a few years ago and still use it today.
LESS IS MORE
200 - 350 ppm of a + b for veg
400 - 550 ppm of a + b for flower
Cal/Magic to a+b ratio
150 ppm/200 ppm = 350
100 ppm/3ooppm = 400
50 ppm/ 400 ppm= 450
Here is a chart the gives the ratios of Calcium in given ppm of A&B.
This is based on slightly rough math but is very close to correct in my experience.
A&B/Calcium
3 ml/gal = .4 EC = 200 ppm with around 44 ppm of calcium
4.5 ml/gal = .6 EC = 300 ppm with around 66 ppm of calcium
6.2 ml/gal = .8 EC = 400 ppm with around 88 ppm of calcium
7.7 ml/gal = 1 EC = 500 ppm with around 112 ppm of calcium
9.2 ml/gal = 1.2 EC = 600 ppm with around 135 ppm of calcium
To my RO/rain water I add 2 grams of Epsom and 3 to 4 ml of Cal/Magic.
5.8 pH
Drip clean for the win.
Silica as a pH up in veg only.
This Calcium information is purely based on a Canna schedule, using Cal/Magic
As I stated, once you hit around 700 ppm you no longer need cal/mag additives.
I use GH Cal/Magic and Epsom. When I use RO or rainwater (2-5 ppm) I add C/M and Epsom to bring my #'s to 120 ppm, then begin adding the base nutes. I use Canna Coco's line of nutes but I back off of their recommended rates, as I feel they are way high. For example, in veg I will add only 200 to 300 ppm of A&B and in flower 400 to 500 ppm.
Using Epsom and Cal/Magic to get my ppm's to the desired level I get plenty of those nutes, and have not had any issues with Mag deficiencies.
GR