Looks more like ph lockout than the 19 defs it appears to be. I would consider flushing with a LOT of ph correct water......and lay off all nutes and additives (read: no more molassas) until we can get them straightened out.

I really do not like the sound of the words "brittle" when talking about leaves and so was not at ALL amused to hear you use it......a brittle leaf certainly sounds like a sick leaf even if you didn't have all the tips pointing up. (I'm thinking thats some nuteburn/molassas/ph thingie happening there)

As an afterthought....are they in a large enough container? Can't really tell from photos.

I'm in no way a soil pro but I really think a good flush would be first in order.

Good luck.