Ph question Help please

Re: Ph question HELP pls

hydroponic ph should be based on the medium you are using. Rockwool or hydroton. get a glass of water and ph it, then fill the cup with your hydroton or rockwool and add the water again to it then ph it with the medium in the water. to find your naturally occurring ph. then adjust to about 5.7 nutrients normally bring it down but it may need an adjuster such as ph down. you want it at about 5.7 as much as possible. ph your solution at least everyother day.
 
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