View Single Post
Old September 2, 2019   #8
zipcode
Tomatovillian™
 
Join Date: Jun 2010
Location: Romania/Germany , z 4-6
Posts: 1,308
Default

I think best cheap option for home growers is the pH paper. Try to get one that covers the range of interest only (like 5 to 9), as it will be a bit more accurate.
zipcode is offline   Reply With Quote