ph and tds meters absolutely necessary?

[friendowl]

i knew it was gonn abe like this but
this is the way i learn best.
now that i know first-hand what not to do
i am more aware of what to do
it cant get any wose only better
and the worse aint all that bad
my ph is proboly like 27.0

friendowl Reviewed by friendowl on 04-19-2006. 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