Thanks for replying and your advice, Ryan. Do you think this root issue is directly connected to the splotchy leaves?
I agree that Amey's idea of the moss is a good idea. When I initially mounted the phals, I used sphag moss, but I've had them for a few years and what I put on had fallen off. I had totally forgot about using moss mainly for moisture retention. Amey may have solved my dessicated root problem.
Thanks again for your help of course, too