My ppm is only 620 should I be bumping that up? I have just started 2nd week of flower. Also should my light be at full power yet? I have had it dialled back and have been turning it up every few days.
Heya!
Although I am new to hydro my last little grow I was running 900-1200 ppm during flower. Yes I would have the light turned all the way up, your plant is in the phase where it needs all the light it can get!
Cheers friend