tru found root rot in the nutrients issue, solved with a reservoir swap and an extra diffuser and solved the heat issue with a little feng shui of the plants.
indeed it is also nice that the majority of the plant doesn't have any of these symptoms. The root rot was in a reservoir I mesured to be 1330 ppm and I put another diffuser in the new res (transplant) and 1050ppm solution so that should get it nice and healthy again. A lot of the root mass looks fine, but it smelled so bad when I changed it.
and the pineapple really only has the heat issues and minor nute burn its reservoir is about 1230 so I'm going to leave it and just add some plain water to it occasionally and pick up another diffuser to add beneath the root mass of that plant also in the next week or two.