Leaf burning, curling and browning oh my!

So i have two pictures, the fan leaf is from my Panther mother plant, and the other is of my White Widow clone. The fan leaf has a brownish dry crackly discoloration, while the widow has leaf curling and a spotty burning.

I'm using 6500k shoplights, sterylized soil with worm castings, a general vegetation fert, i maintain a temp around 70, and just added a compost tea yesterday to see if that would help any.

Any suggestions!? These are the only two plants with any problems in an otherwise spotless and gorgeous vegetation room, please help!!

dude you've almost fried your plants from nutes,when I get a lil burning of my tips I get paranoid,but in your case is way worse,but still hope left,just flush with as mush as 3-4 times as much water as the pot size,no nutes for at least a month or so,and then see if it'll survive,if it does,be more careful when you give it nutes,remember,less is best!

hey man are they dry or just browning like that