N deficiency or nute burn?

Pics depict current status of plants; 4 weeks into grow. Yellowing occurred within 7 days of first application of Jack's Classic nutes at 1/8 strength. I've subsequently watered with 6.5 pH H2O (at same time pics were snapped). All comments/advice on whether to cut back or increase nutes welcomed/appreciated.

I cant offer advice but my plants did that about 3-4 weeks into the grow. Im on week 5-6 now and its come right with lots of plain watering.

I'm not familiar with your brand of nutes but I'd be using the directions on the package. I'm feeding at 1/4 strenght at two weeks, 1/2 at 3 weeks & full strength by the 4th week in most cases. Wait to hear from others however as I'm no expert on deficiencies.

I've come to the conclusion that prob is nute deficiency vice nute burn and turnig up the wick on the nutes.