thought i was over ferting after 2 weeks srt 8water my leaves are turning yellow help

i posted some pics a couple weeks ago and was told it looked like i was over fertilizing my plants, so i went to straight water for two weeks, now some of the leaves are turning totally yellow. any idea what is causing this...

just so you know, im an idiot, after i harvested my last plants i reused the soil, which i believe was not the right thing to do....thx a million in advance for any help, rm

nice avatar bro... i have them out side, the temps are mid 60s at night and low 80 in the day...


er ah ..props on the sheep thing

here are pics of the whole plant...thx for taking the time to help, rm