What is ppm?

[andreasman]

I have no clue about ph levels or any of that please explain where the levels should be,how to check and how often.Thanx.:bong1: :confused: Stoned and confused!!

[RatherBBurnin]

PPm stands for parts per million... ph is the level of acidity or alkaline your water is... basically go check some of the stickys in hydroponics and you will find the best ph to have... test is every couple of days or whenever you remember.. it should only change really if you do something like nute, or water etc.... as long as its within a certain level you are fine.. to test.. you can use a soil ph test kit from a garden centre.. or a digital ph test kit from home depot or somewhere like that..

[Runbyhemp]

Hey andreasman, handiest thing to do is buy a ph meter. 7 is neutral ph. Anything above 7 is high and anything below 7 is low.

If you're growing in soil you want a ph value of about 6.5. If you're growing in hydro you want a ph of about 5.5.

As RatherBBurnin explained ppm stands for parts per million. This is the measurement of dissolved minerals in water, or simply the amount of nutes you give it.

Hope this helps