Underground Scientist
Well-Known Member
I have the Dr. Meter TDS meter for 12.99 on Amazon...works fine to help you realize how strong a mix you're using. I barely use it anymore, but if I switch nutes I always use it to guage what I'm doing.Hey man yea I need a meter I have been using the liquid ph meter so I can’t check Ppm I’m going to
Purchase a meter on amazon.