How long did all this take to happen? Unfortunately, I can't help with your problem. Ironically, I bought a blooming Brassavola nodosa yesterday at my local orchid nursery. It was grown in a clay pot. Hannah, the nursery orchid wiz IMO, said when she was told to pot them up in the clay pot, a large pot as compared to the seedling size, and to put them on the bright side of the Dendrobiums in the GH. She said she was surprised at how fast they grew into the pots (2.5 inch round). Then they grew spikes and moved out to be sold. Hannah told me to treat it like a cactus, water wise.