Im on week 4 of the veg state and my plant is starting to turn light green an the bottom two leaves are turning yellow and black an dying.. I heard this might be a deficiency in nitrogen or potassium. I just started adding nutes to these guys a couple days ago but i'm sure this started before then. I may post pictures tonight can somebody help? I've seen a couple bugs on them but i don't think it was them theres a spider or two who have found refuge in my pot i think