perfect ph?

i was wondering ,what is the perfect ph for soil mix ,my mix is 50% petmoss 50% top soil, i have a ph of 7.25 on my 2 prog meter which measures light ,moister and ph (for soil). i am prepping my soil now and letting it set for a few days before i start on my venture.i also woud like to know what would be the best products for raising ph and lowering ph.
thanks in advance

Dolomite lime added to your soil mix will help your PH a lot continuously throughout the grow. I'd be lying if I told you I knew the perfect PH, but usually organic grows don't have that problem, especially if you use coconut coir instead of acidic peat, so I've never had to worry about it.