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How and when do i use silica additives? What exactly is this additive for. I am running a coco/perilite mix.
i use silcia blast like true grit uses his 2.5-5ml/gal (5ml/gal is 200ppm) and i use it mainly for my afgoo plants as they have weak stems and it helps strengthen them up so they can hold all the weight they throw.
put the silica in your res first, I use R/O at a 7.5 ph, I use Dyna Gro Pro Teck, or Atomic Wall, Both the same shit, 2mls per gall. Takes my ph straight to 8.5-9.2 like clockwork.
The add your base nutes, Bam!!!! Back at 5.8. The I add all my additives, depends what stage Im in but Root Excell, Drip Clean, Humics, whatever you run. Then add your Cal Mag last. Ill be satisfied with a 5.4-6.0, usually its about 5.7-5.8 on a fresh res.
If I need to go up I may use .5 mls of Pro-tek to move it up, if I ever need to go down its just humic acid, or Trinity from R/O works well to. I stop the pro-tek at 4ks 12/12.