Beallara/aliceara orchid, what am i doing wrong?

[lauraeli]

my third year with this one, they are supposed to be 'easy' but it has just been on an extremely gradual decline since i bought it. It is potted in nz sphagnum. Its in an east window. It probaly gets fertilized every 6-8 weeks. The roots start out and then die as soon as they touch the moss. Every years growth has come in smaller than the previous years so eventually it will die. It has never attempted to flower This one dries out fairly crispy a couple times a month which i dont think they like. But ive never grown these before so im pretty clueless. Help?