Phal - Purple/brown root tips

[MateoinLosAngeles]

Hi everyone!

We had a few weeks of a bit of a cold spell in Los Angeles and noticed some orchids getting a bit of a purple tone under their leaves seemingly overnight. I didn't think much of it but just in case I supplemented with Magnesium at the beginning of the month (on top of regular fertilizing with K-Lite).

I have this Phal White Dream "V3" that is making daddy very happy with plenty of new roots. I'm used to seeing root tips being anywhere from pale green to brown, however, what surprised me was that the root tips pictured below went from bright green to maroon (again) seemingly overnight. The speed of the change is what caught my attention.

I'm assuming nothing out of the ordinary but any tips (no pun intended) on whether these maroon tips are telling a story I'm not reading correctly?

Thank you!

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