Phal with root problems

[orchidee_de_la_mer]

Hi!

I have bee having a phalaenopsis in a semi hydroponic medium since spring and have been desperately trying to save it. It started to loose several leaves, than when I repoted it I noticed that most roots where gone... so I gave it a little more intence TLC and after a while it lost all its leaves but started to grow a new one, than a left over stem started growing a keiki and I saw a couple new roots coming bye... Now, this week I picked it up to give it a watering and notice that the bottom of the plant was roting and, in fact, all the new leaves and roots where completely dead. To be actualy more precise, all the roots where kaput and the only thing that is left live and green on the plant is the miniature keiki on the stem. What can I do to save this plant???

Thank you!!!

[mayres]

This doesn't sound too promising - can you post a pic?