Is anyone familiar this this plant, or maybe they can better tell whats going on with them?. I have two and ones new growth is crinkly! It's also growing really slow now! The other one has yellowing from the top down

I don't know if this is related or not, but to me it all started when I bought some banana peppers at a nursery. They looked like they had been pruned from the top down. They just had the top most leaves. I quickly learned that they were yellowing. But, they were so brittle that if you lifted then or placed the pot down they would snap off at the node. They lost all their leaves and are now regrowing green. But, ever since that.. many of my other plants are not the same.. :S

Does it like like a deficiency?

I attribute the brown burned leaves of one to foliar feeding. :: Never again.

I don't know anything about your plant specifically, but overall it looks like the roots are struggling in heavy, soggy soil. But it also looks like the overall weakened condition has allowed other "stuff" to go wrong with it too.

Is it hardy where you are? Isn't it a baby tree of a fruit-bearing giant? That's not usually the kind of thing you can grow in a pot inside because of the insufficient light, but from the pics I can't tell if the plants are in or out, and that's just a generalization that's often successfully broken, just throwing it out there to help get a discussion going on this. So often it takes a wrong suggestion that somebody wants to correct...