Two Mini Phalaenopsis...How should I repot???

[Irielicious]

I bought two new mini phalaenopsis, Doritaenopsis Lianher Cranberry "Bravo" and "P. Chia E. Berry". I have never been able to keep a mini alive after repotting , So I really want to get some advise as to the best method to keep them alive!!! I usually repot into a large bark mix but their roots just seem to dry up since they like to be more moist than their larger brothers and sisters...

I had to buy these two new mini phals as the rescue I got from the grocery store did not make it!!! She only had three half dead roots and crown rot...she never had a chance. These stores don't care about these poor little plants me makes me so angry!!!