Thank you for all of the info. I just realized that there is a hydro store near me, so I will make a visit today.

One more question that I posted on another board, that hasn't received any answers:

Should I post my medical marijuana info near my garden?
I am afraid that if I don't and law enforcement comes, they will pull my beautiful crop... I am told that where I live in Cali, as long as you have a doc's recommendation they can't touch the stuff. Any opinions/advice is appreciated.