Phal help for a newbie...root problem :(

[Leafmite]

As Ray indicates, the rate of watering depends on the environment. I am currently growing under lights for the first time and need to water much more often than when I grew in the windows or even outside.
I have always just watered my plants and orchids when they need it, no schedule.
With the net/basket pots or mounts, knowing when to water is very easy...I can see the roots. If the roots look dry, I water until they look happy again.
I like the expanded clay pellets better for orchids that need watered more often as they are more uniform in size and wick up water better than the red lava rock. I moved all my phals into this to save on the watering effort. Growing in the expanded clay pellets and the net/basket pots makes growing phals very easy. I set the pot in a clear container when the phals are indoors to help with humidity around the roots.
I hope this helps.