Just to throw in my 2 cents: 3 best things I ever got for my hydro --a good PH/TDS meter, using R/0 water (we have a well) and a good quality light. Cost money? Yep. Worth every penny? You bet they are. Skipping stuff is fine until something goes wrong. And since I'm putting the work and time into them I might as well get a really good yield rather than an average one.
Weedhound Reviewed by Weedhound 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