normally

Hi what should my e,c -cf levels be at start of week 4 of flowering d,p white widows I've been told there heavyfeeders and have it like 2,0 -20 I normally try to keep bout 18 should i up it a bit thank you in advance Tim

We recently clipped some leaves that might have recently had nutrients in the plant it came from, are these still safe to use? I know normally you flush everything but does that apply to leaves? Would like to use it to make cannabutter.