PH questions

1) What is the proper PH and just how close do you need to be to that number ?

2) If PH is too high how do i bring it down ?

3) If PH is too low how do i bring it up ?

4) Is nute lock the main concern with an incorrect PH level or are there other effects from your PH being off??

5) If i think they are nute locked how do i fix them?

I am intersted in how this effects plants in the 4th week of flower that are being grown in pro mix

Also
i did try to look this stuff up but there is sooo much info here it was taking me hours to sort through it all so decided i would just ask the pro's =)

thanks a ton !!!
lilman Reviewed by lilman on . A few questions about PH..from a rookie PH questions 1) What is the proper PH and just how close do you need to be to that number ? 2) If PH is too high how do i bring it down ? 3) If PH is too low how do i bring it up ? 4) Is nute lock the main concern with an incorrect PH level or are there other effects from your PH being off?? Rating: 5