Purple undersides are genetic on the blue lines. Im sure I got a pic in here of some already, or on my ig feed.
Overwatering sounds possible with the leaf curl under. Try what i suggested earlier with the dry cycles and 100% flush.
Bullshit.. You don't grow.
French tips.. Blue ass plants. And we recommending drought to cure it? Why not douse it in calmag and blueberry Floranectar while you're at it.
Guys. Real purps aren't crusty. Thin brittle leaves are not "fade" These plants are blue, French tipped and curly because they are sick. They look like they are grown with calnit.
Hit me up if you want to know how to grow. I'm tired of being the only guy who remembers when purple leaves didn't have crispy edges