I dont have a ph pen i need to wot like 2 weeks.. but grow is slowly coming to an end I kinda know how many ml per gallon gal I need to add to get the 6.0ph, same with other nute, its cslled gardeners memory haha, but anywaynim going crazy here with overdrive and im adding a ton of it in im guessing its week 4 coming closer to 5 i dunno i did not count days but shes getting fat smells like melon and I got the one that when you smell it it reminds you of that honey sweet melon you got at a shop, bot like the green ones you get sometimes, I love fastbuds hope they will work with me moŕe