Thanks so much for the quick response!
Answering your questions, no I have not fertilized. I mix a potting mix with fertilizer already in it half and half with my seed starter mix when I pot up. These are very big so they probably do need an extra boost.
I got in there and really looked hard at the new growth. I do not see any sort of insect damage but I did see what appears to be a faint patch of the same thing going on with the new leaves. It was sort of a dried up area in the middle of the veins.
I have to head up to the store today anyway, so I will pick up some type of fertilizer to try. I have a tomato fertilizer here and some osmocote. I'll check those labels but may just go ahead and pick something up specifically for veggies that can be used in a watering can. I think I'll keep these guys isolated for a few days and treat all the Jal's and see what happens. If you have a specific fertilizer you like, feel free to share