when theyre young (less than 6" across), they are hard to grow because you have to keep their conditions constantly favorable and stable.
my terrarium is actually a good temp, and the humidity i would say is about 50%, but wouldn't go over 60%... will covering the terrarium hamper any of my other plants? i have a N. Rafflesiana, N. Ventricosa, Ping. 'Titan', Ceph. follicularis, D. Bianta Dichotoma, and D. Regia. They are all growing like weeds, so i assume i finally got my terrarium at a happy middle point for all of my plants to grow...