Crispy, cracking leaves! Help asap!

Well my plants were pretty healthy (they still are relatively), but there are signs of what I think is Nute burn... Is it? I followed the directions on the bottle, but it gave a few of my leaves crispy, brown patches and one of my plants biggie looks fucked. Biggie was one of our best lookers up until now...

Help!!!!!

Check my grow for more info... its on the last page... thanks

if tis nute burn just flush then start with a light feeding after a week

will these crispy leaves revive them selves? or will they eventually die? Should I cut the bad parts of?

DON'T cut them. Just let them be. Only when they are virtually falling off themselves do you remove them. Even if dead and wilting they bring food to the plant so every inch of fan leaf helps... Well that just my opinion anyways. Good luck my friend.

what are you using as a potting mix?

check if the soil is good to flush first

as a general rule i usually take leaves off when they are >50% ive read the plants will use the lower fan leaves for food if there is none avaliable? now im no expert but maybe that would suggest it is showin a defficiency if you are feeding them it could be nute lockup due to salt build up or wrong PH? only ideas of the top on my head but hope it helps!

most grows i've read up on start out week with nuts and gradually build up to a stronger mix as long as the plants are thriving looks like a good flush is in order and rethink the way you apply nuts