dude... in hydro a young plant cant take 250 or such. or its overfed. if the plants are starving then feed more. I'm posting what works for me.This is how bad advice gets started. Someone posts crap like this and then some new grower reads it not realizing it is WRONG and passes it on and so on and so forth. Next thing you knoew we got grower starving their plants to death all because some fool "read somewhere" a bunch of wrong information.