not true at all donovan. but it does help. if nothing else get the pill and vial test from homedepot or a nursery,then adjust til it says prettymuch nuetral(6-7)as it often begins a slow decline after extended use with ferts like miraclegro(not bashing i used it plenty) adjust your ph up with lime and down with..lol it just says espoma soil acidifier but some one else will tell you the real name as well as some alternatives. use your mg plant food starting at one quarter of what it says on the bottle or box. if you get the 42w cfls theyll be more than good enough to get the hang of growing have fun man.