Quote:
Originally Posted by SavanaKitty
UPDATE:
2 of them are doing well now that I have balanced the watering and heating. However, I've been observing one of my my flowers and I've noticed that it's not doing well (it was bought in different non-specialized store) and some of roots inside have even got this weird frost looking cover, which probably can be a sign of rot. There are 2 orchids in that pot, one of them is blooming, other is just trying to grow it's stem back (or not), I just ordered some supplies for re-potting, I'm going to give a shot and re-pot both orchids into 2 separate pots once my delivery is here.. I'll try to use a mixture of bulk, Aliflor and a little sphagnum moss in the bottom.
And the other ones so far are doing okay, so I'll just leave them alone for now
Please let me know if there's something else I should know. Thanks for your help 
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Hi and welcome to Orchidboard.
I am not sure what you mean by "bulk" (bark?). Bark with Alifor is fine. I would not put sphagnum in the bottom of the pot (it will cause rot). Either leave it out, or maybe use just a little on the top of the pot to help manage humidity around the roots. Your goal should be to have the bark-aliflor dry out most of the way, but not completely.
All of your pictures of the roots seem fine for now. When you re-pot, I would not cut or trim anything that is firm to the touch.
You mention that this plant is right above your heater. That may be too dry an environment; might explain the somewhat curled leaves (unless the plant came that way). If you have other house plants, keep your orchid grouped with your houseplants, that will improve the humidity.
Good luck!