Epiphytic Orchids

[Whimzikal]

Currently I have a dendrobium and phalenopsis in a thirty gallon hexagonal growing in as epiphytes. Currently the roots are covered with a damp sphagnum moss to encourage growth and attachment, but I haven't been able to get the moss to come out of its dormant state just yet and was considering replacing it down the road with Java moss. My only concern before I do this however, is whether or not the java moss will become parasitic or can remain neutral or symbiotic. Any thoughts or related experiences would be greatly appreciated.