Plants are looking better. The ppm did not drop at all but stayed level. I am leaving for 24 hours so I diluted to res down to 150 and put the ph at 5.6 I am expecting them to eat and for the ph to rise while I am away to 5.8 since I can't calibrate it. I am wondering if I should add a few more drops of cal-mag since I am only at 30 ppm with it and 120 with the grow.