ok you're supposed to top off with half strength nutrients every day and change your reservoir every two weeks or so right? question: how often would i have to completely change a 14-gallon reservoir? still every two weeks? and by topping off with half strength nutrients, is it supposed to be half the strength of the current measured ppm, or half strength of what i am giving them? thanks for any help
Dr. VanNostrin Reviewed by Dr. VanNostrin on . question on topping off and reservoir changing ok you're supposed to top off with half strength nutrients every day and change your reservoir every two weeks or so right? question: how often would i have to completely change a 14-gallon reservoir? still every two weeks? and by topping off with half strength nutrients, is it supposed to be half the strength of the current measured ppm, or half strength of what i am giving them? thanks for any help Rating: 5