Thanks for answering my questions. I like the pick the brains of people who grow healthy, good-looking plants because they are obviously doing something right.
I agree that cephs don't seem to be that picky about medium as long as it drains well. I recently started using aquatic pond soil in my ceph mix. APS drains fast and holds water without staying soggy. It makes up half my medium now, and the plants seem to like it..
My cephs are under lights as well, some under T5s and some under a bank of compact fluorescent lights. I think if I were going to start again, I would probably just use the CFLs out of cheapness.
Your plants are beautiful. Thanks for sharing the pics.