not a problem BC... very glad to share the knowledge i have...
i try to stay as mellow as possible.. it takes a lot to work me up.. whats a stoner if not mellow
so yes, 7.5 is bit high for soil.. i would personally use with sulphur, aluminum sulfate, or a soild acidifier like this
http://www.planetnatural.com/site/chelated-iron.html
regardless of which you choose try to adjust your ph slowly... its better and easier to continue to lower than to over do it... if you can get it down to around 7.0 or a little less that will be plenty sufficient...
post count.. thats it.. just gotta keep posting..
aerogardens are nice... they offer very fast growth... great results... and are fairly simple to operate...
the down side is there are minor adjustments that need to be made.... parts of the "puzzle" that may fail... and takes a little more attention to get started.. but once you get it up and going its easy...
with it being hydro you have to watch ph and ppm much more closely... to much nutes will cause burning really quickly... the wrong ph and you'll suffer bad lock out...
you always have to adjust the feeding lengths.. which means watching your plants for signs of over and under watering...
in my experience i am happy i started with soil and to hydro.. soil is more forgiving in that the soil acts as a buffer zone.. so nute burn or deficiencies, over and under watering, things like that, take a little longer to affect the plant.. which means you have more time to figure and diagnos the problem before it really becomes a problem.. with hydro that reaction time is drastically reduced...
now im not in any way trying to shy you away from starting with aero... im just warning you that if you do start with hydro it will take a little more "fine tuning" than dirt will.. which could lead to frustrations.. i, of course, will be more than happy to offer any help i can either way...