question about tds meters.....

uwazayn · Jan 12, 2009

I been using soil test kits you mix with tablets. I just wanted to know if tds meters are worth the money or even needed for just one or two plants?

Where in the hell am I? · Jan 12, 2009

If what you got is workin', why change?
https://www.rollitup.org/cfl-growing/146691-new-cfl-grow.html
I didnt even want the cupcakes, but I my milk/cookie ratio was off the hook