Thanks for the input guys, I really appreciate it. I guess I am in good company if Admin recommends the aluminum sulfate. I will measure mine and see what it winds up at but 4 grams per gallon sounds pretty close although I like my pH a little lower. I like to keep mine between 5.6-6.0 but I think that has a lot to do with how you feed, in what amounts and is very strain dependent as well. I would be willing to guess that Muddy is not a big sativa grower because most will not be happy at all with a pH over 6.3.
