I recommend the cheap litmus paper test strips, available at most drug stores, or the simple liquid test kits ... :smokin:
the image reaper Reviewed by the image reaper on . what do yall think of this ph meter PH Meter Stick Wand Waterproof Hydroponics - (eBay item 330169884810 end time Oct-04-07 20:35:31 PDT) it seems like a good one to me and a fair price too Rating: 5