Both K2S04 & MGS04 are used to make up GH Booster so you should not need to add that separate. Use their directions to mix everything - Our PPS-Pro Fertilizer Pack ? Just Mix & Dose ? Planted Tank Blog
I wouldn't know a specific scale to get, they all will work haha. If you don't care about being super accurate you use teaspoons and convert to grams via google. NOT as accurate, but close.
Thanks a lot - that clarifies a lot of my questions. I will probably just use teaspoons to do the mixing vs. buying a scale at this point. (unless there is a reason it has to be exact).
So if I mix it up like suggested via the link.
Macro - 1 ML per 10 gallon (I'd use 4 ML's - once per week)
Micro - 0.1 ML per 10 gallon (I'd use .4ML - once per week) - that could be tough measuring that correctly.
Is that correct?