I am seeing the spots on mine also. only on the northernberry but not the skunkberry?? week one of flower after 4 wks veg.

am also using GH 3 part, on hydroton pellets and after adding Mg. thinking it was that, not!

so now I think its a K lockout, due to not carfull mixing of nuits. all three parts need diluted into a volume of plain water before combining them in the right order. if after this last drain and refill(today) this doesn't solve it I am clueless
unless the formula on the bottle just doesnt supply enough K

I will be watching this thread also
Daddy
Daddynobucks Reviewed by Daddynobucks on . Whats wrong with these plants?!? Hi, Currently on my 3rd week of veg. Had some problems in the begining and thought I fixed it but now the leaves look like they have nute burn. Anyone know what this is? Also when I measure my PPM and PH I put the pen right into the resevoir. Is that correct? Because when I put it in just the cap of the PH pen it reads totally different. My PPM right now is 645; my PH is 5.6 and my water temp. is 70.5 Any help would be great thank you. Rating: 5