On hydrophonics you don't have a natural buffer like with soil. So it's impossible to have good control over your grow when you're lacking that material
britewire Reviewed by britewire on . ph and tds meters absolutely necessary? i understand that a lot of you go all out with your grows and i know that it's worth it, but how bad could it really be if i was lazy about it and didnt use a tds meter or any ph meter or adjuster? is it even something to be considered? Rating: 5