Hi dianchik and welcome to orchid board
Silver roots are dry and green have enough water HOWEVER if you are only looking at the ones at the top then you could be overwatering. Your pot is not clear so you can't see the colour of the roots at the bottom and in the middle, they could be green when the ones at the top are silver.
It's difficult to tell but the medium in your pictures looks quite dark which could be a sign of being still quite wet, so despite the silver roots at the top it's not time to water yet.
Use the wooden stake you have in the pot to judge watering. Pull it out and if it's damp (feels cold on your cheek) then it's not time to water yet. Put it back in and wait, when it's dry when you pull it out then it's time to water.
The plant doesn't look in good health, The dead leaf has black spots which could be some sort of fungal infection, although I'm not an expert on that. The new leaf is an encouraging sign.
Personally I would check the roots, you said you cut off dry looking roots, but did you remove it from the pot, or was it aerial roots you removed? I would gently remove it from the pot, and remove the medium and take a look at what the roots in the pot are like, if they are soft/hollow/mushy then they are rotting and have been kept too wet, if they are firm then that's good.
Finally unless the root mass fills that pot then it might be best to reduce the size of the pot, phals like to be pot bound (because that help get air to the roots which they like) and at first glance that looks like the pot might be too big, however if there are masses of healthy roots it might be right. You need a pot which just fits the root mass.
Hybrid Mode
