Thanks 78Terp.

I've come to realize how important orchid roots are and how different their care is from terrestrial plants. They get very bright light so the roots can photosynthesize. Based only on its dark leaves, this particular phal gets the brightest light (closest to the window). It was pretty dessicated when I found it so has taken some time to recover (orchids do things soooo slowly!). Now it has a few good roots and has grown another new leaf. All my orchids (all but one are phals) definitely have a day/night temp difference as I turn the heat off at night. I've had it since summer 2014 but it has yet to bloom. Any thoughts? I use a dilute solution of 30-10-10 fertilizer and have just started using 15-30-15, once a week.