There is an article somewhere of how much you should start with depending on tank size and current levels of P and N, I cant find it but im sure someone here has the link, I think its an artilce by Randy maybe?
I have been dosing for 2 weeks and I can already see a diffrence! Ive only scrapped the glass once in the past 2 weeks, it used to be every other day. The Hair algae has gone down as well. The worst problem I hade with it was getting my skimmer in check it started skimming very wet, and then I had a cyno out break as well, so I started using MB7 along side with the vodka and all is well now.