Apologies - I was responding to two enquiries and mixed them up.

I have a couple of Phaels, and I use the #5 Orchiata pine bark mix straight. I keep my orchids in the screened in porch in summer. It gets very hot, so my phael is watered 2 times/week summer. Once per week in winter when I move them back indoors. It is doing very well. I have had the plant for 2 years, and repotted it into the bark shortly after I purchased it. It has bloomed beautifully both years.