Quote Originally Posted by latewood
you might even cut back on the last watering before lights out...to let the moisture accumulated in the rockwool evaporate better before lights out(you see, this is the problem with the big rockwool blocks, they hold moisture too long in a ebb and flow system,) Imho and that is why I grow inhydroton only, clones go right into hydroton in netpots...matter of fact, my local hydro dealer grows veggies in flood and drain in the store and he has plants in netpots filled with hydroton buried in a sea of hydroton...
I mispoke here...so I edited the quote, to say what I meant the 1st time...

I thought of another reason for chronic droopiness...Humidity! What is the humidity in your room? That could be your problem, period...with rockwool blocks holding all that moisture...think about it...back later.lw