nitrous oxide
Active Member
this is my first time growing in soil that didnt already have the nutes in the soil so im not sure exactly how to go about feeding them properly. Some of my plants are showing signs of nutrient def. So heres my question, how do i know if im under feeding them or over feeding them and locking out nutes? If i buy a ppm meter can i measure the ppm of the water going in and then compare it to the ppm of the water coming out the bottom? thanks
