I'm having trouble keeping some of my xCryptbergias alive. The greener ones that seem to be more Billbergia than Cryptanthus are getting to a decent size and then dying off. The pink/red ones that look most like the Cryptanthus side of the family seem to be doing fine. The colored ones also have a much firmer leaf, more like a Cryptanthus.
I have been keeping these plenty moist, but no different than any of my other seedlings. I have Alcantarea, Aechmea and Neoregelia seedlings that are getting the exact same treatment and none of them have died. I'm wondering if it is just bad genes or bad care.