yeah what did me in is I kept mine there for overe a week less thean 20 inches. prolly like 17 inches or so. LOL theyre green just tips and thats light and possibly soil. i disagree its cal mag related as of yet. ill have a different view point though once MY soil is done and boosted the way I like,then we'll see. 6-12 drops per gallon depending and I wont use any more during my second grow. and really this grow too. and its doign great short of the early stress. but Im stoked to see them fully flower.
I totally would buy one of those $89 dollar kits. you would buy what around 250 USD or 300 USD to buy the other gear? so sounds like a deal to me. gonna have to source some parts though. I like that online components place,aint bad.