How to get a keiki to root

[firesurfer]

I am new to the Orchid world but I have quite a few Phalaenopsis. I have had some for many years without any flowers but with massive roots, which I love. (I actually had one attach itself to my bedroom wall) Anyway, I work part time for a grocery store that sells them & when the flowers start to droop they will either mark them way down to sell or just toss them in the trash. Needless to say, I CANNOT allow them to go into the trash so I "rescue" them. I am getting quite a collection!! Down to my question...One of the dieing orchids I rescued from the trash has a keiki on the flower stem but no roots. I really don't want to loose this plant & especially the keiki. I have been misting it every few days with hopes that a root will appear. My question is: Am I doing the right thing or would it be better if I put some moss around the base of the little leaf? or is there some kind of vitamin I can spray it with? ..Thanks in advance!

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