panta
Well-Known Member
Phosphoric acid,can i use it to lower the ph,i see on this site they sell this ph down,then i thought can i buy Phosphoric acid at a pharmacy and use that
http://www.hg-hydroponics.co.uk/ph-down-307-c.asp
http://www.hg-hydroponics.co.uk/ph-down-307-c.asp
