I’ve always had the best luck with clay pots and cactus mix soil for Christmas Cactus - or any type of succulents.
I think I’ll start some more cuttings from Miss Peach, just to hedge my bets. The peach-colored ones seem to be hard to come by.
I must have been really tired last night when I tried to write clay pots. ;-) I had never seen a pink Christmas cactus, so grabbed the only one I saw. It was beautiful.