Potting advice needed for several species

[Roberta]

Alas, my success rate with jewel orchids has been really bad. I just put in an RO system, so hoping that was one factor... my greenhouse may have been too bright, even in the shady spots.... I have a surviving Ludisia discolor, that I have brought into the house and it's sprouting from the remaining growths, so maybe... A light potting soil should be fine, and the terrarium should work... I have concluded that they need humidity, not much light, and good water. But time will tell whether I have finally figured these out.

Those badly damaged plants may make it, depending on the condition of the roots and body of the plant (not quite a tuber, they have thickened stems). If the base part is healthy, they'll grow new leaves. Good luck.