i wanted to ask you about the water ph...it's ok if i use vinegar and baked sode for adjusting or should I use something else? And monday I'll buy a ph metter for soil and i need to know what the humidity for soil must be, 'cause my ph metter have a scale from 1 to 10. P.S. I know that air humidity must be between 40-50 % , I don't know for soil...
