Ok so I know that I'm going to change out, completely, my nutrient solution every two weeks. I also know that I should periodically check the PPM of my solution and adjust it with filtered water to bring it back up to the target PPM I started with and PH adjust, of course.
My question is how often should I do that? Every day, every few days?? When it gets out of PPM range by a certain amount?
My question is how often should I do that? Every day, every few days?? When it gets out of PPM range by a certain amount?