Purple Phalaepnosis Roots
 

I have a Phalaepnosis orchid and it has some purple roots, they were purple when I got it and I’m pretty sure my Phalaepnosis is healthy besides the fact that it’s dropping some flowers but I think that’s just because it’s been in bloom for a while. So does anyone know what caused it? I don’t think it’s natural pigment since there are other green roots:
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don’t know for sure, but if it was me id be repotting that thing....

I can't see well enough to tell what that represents.