Although I have socks now I used the copper shield the last 2 times and never had a problem (I put them in the bottom of the pot)
No roots even got close to passing it.
But I like the socks and am using both, inside copper and outside socks.
As far as nutrients I use
Dyna-Gro products the last few grows, when I seen DB using them and have not been disappointed.
Work great and are very clean to use in the res tank.
I feed just like I do when I top feed after I start the nutes in the res tank, it gets fed every time I top off the tank.
Depending on where the plants are in the grow I feed them half the normal recomended dose until I see I can increase.
So PPM is 500 at first then increased as the plant gets aclimated and grows stronger.
I also mix in a 2 gal can
VEG
Wk 1
1/2 tsp
Pro-Tekt
1 tsp Foilage Pro
Wk 2-4
1 tsp
Pro-Tekt
1 tsp Foilage Pro
Flower
Wk 1
1 tsp
Pro-Tekt, Foilage Pro, Bloom
1/4 tsp Mag Pro, Zyme
Wk 2-4
1 tsp
Pro-Tekt, Mag Pro
1/2 tsp Foilage Pro, Zyme
2 tsp Bloom
Wk 5
1 tsp
Pro-Tekt, Mag Pro
1/2 Zyme
2 tsjp Bloom
Wk 6
1 tsp
Pro-Tekt
1/2 tsp Map Pro, Zyme
2 tsp Bloom
Wk 7-8
1 tsp
Pro-Tekt, Bloom
1/2 tsp Mag Pro, Zyme
Of courst I will make adjustments as it goes.
The only time I put in PH water is when the PPM gets too high, to level it down, which is rare.