also have a stupid simple question that I believe I already have an answer to but will ask to verify, when growing with supplements (calmag, koolbloom, florishous plus, etc) they effect the ppm of your mix correct?? Have onyl really played with GH 3-part and wanted to make sure before I started mixing 40+ gals of water just to go "shit" at the end and have to dump it and start over. Have read allot as many of you know but cant remember ever seeing this in black and white even though it's prob a "no duh" answer lol :wtf: