In a message dated 5/20/99 11:17:22 PM, kay@fern.com writes: <<In contrast, a paper like pHydrion is about 1/4 the price and has an accuracy of about 0.5 pH units... more than close enough for all but the most finicky plants. >> Kay I tried the site you posted about the papers and alls I could find was their plastic containers that they sell. What did I do wrong? I would really like to try the paper since it is so reasonable. Is it easy to use also? TIA, Kris P z 5 IL