2 plants week 3 veg i have 4 GH powergrowers. 4x4 grow tent with T5 6 lamp sunblazer 54w and a 600w HPS running at 60%. temps 75-82 F during the day 65-70 F at night. Not really sure what ppms i should be running! any advice? Hello i just received my RO water system and cal-mag. some people say with the Advanced nutrients you shouldnt need cal-mag! my nutes: non ph perfect Micro, Grow, Bloom with B-52 and voodoo juice i will soon get overdrive and big bud or bud factor x not sure what i should get for flowering really.. would love opinions! does anyone have any experience with Advanced nutrients??