phalaenopsis orchid root rot

[SamanthaBrooke]

Hi,
I recently had to repot my phalaenopsis orchid that I had rescued from a dark corner in walmart, but grimaced as I found terrible medium, it was straight moss, saturated so heavily in water with just a pin-hole in the bottom for drainage, I gently pulled off all the moss from the pants roots successfully but found terrible root rot...I haven't dealt with root rot before but first instinct told me to cut off the black rotten parts of the roots until into the health green growth, afterward I repotted it in sterile medium in a clean new pot, after I had finished and brought my Orchid back inside I hopped on the web to read around, everything says I should have soaked it in an fungicide.

I did not soak my Orchids roots, will it be okay or am I fighting something I will now lose?

Any feedback or advice is welcome!

Thank you!!
(I wasn't sure if this should have been posted here or in beginners)