Hello and what's wrong with my Phalaenopsis' roots?

[ROSIEonFIRE]

Hey all! New forum member, new to orchids. I bought this Phal about 2 months ago at the grocery store. It came packed tightly in spaghnum in a little soft plastic 'pot' inside a decorative container. About a week ago I repotted it using Repotme Monterey Orchid mix into the pot you see here. I'm concerned about the appearance and feel of most of the visible roots. They looks like they're covered in salt, seem oddly discolored, and are somewhat rough to the touch. I'm not sure if they looked like this when I got the plant or if this is recent.

These are my care conditions: I have been watering sparingly. I have a balanced fertilizer sans urea in extremely weak proportions a few times. I typically water about once a week. Previously, I was not flushing, I just started doing that today. I was just dribbling a little bit in to keep from overwatering. I'm using tap and i dont know if its hard/ph.

This plant was extremely vigorous looking when I bought it and seems to be doing well in it's new home. It's already put out a new leaf and the spike tips are clearly growing. The roots didnt look too bad when I repotted it, considering it was packed tight in spagh. However, I'm new to Orchids and really want this plant to thrive into the future. Please let me know what you think. I believe the cultivar (?) is Chia E Yenlin.