hmm..then stop adding nutes for a couple of days and see if the problem advances. if it doesn't, you know it was nute burn, if it does, post new pics and we'll find new answers.
flush the plant good and then get some cal mag and you should be good to go bro other wise fush it and its 2 early to apply nutes unless it was soil of course because soil buffers out half the nutes but supplys them for alot longer .
and im using gallons of distilled water....the water i put in it before this was water that sat in my bathtub for 4 days....and it had no burns....it doesnt look like it got worse but not trying to burn up my plants or better yet not know why they are burned