Indeed it's a very nice plant, probably yet the only one found living under these conditions.. And all other bog orchids go into dormancy.. Not sure about the tropical ones, but there are not so much of them in the trade.. The best options we have till now so far i know are the smaller epiphytic bulbophyllum sp. I have (had one) bulbophyllum taiwanese was the smallest i could find, planted it above the tank on some DW, but it did't like the move and lost all it's leaves. I moved it in the wrong periode, shouldn't have done that. I don't know if any of the bulbs survived and commes back..
While back, now nothing left..