Well I haven't been successful with gemmae before (I tried several species once long ago) so I am happy to report that my D. leioblastus gemmae from Marius have germinated. They are in 50/50 sphagnum peat & quartzite turkey grit with 1/2" of pure sand ontop and as of leaf #1 they are doing fine!
I took them off the deep water tray now that they've germinated and moved them to my tray that always has just 1/2" or so in it. Is this good for these guys or should they sit in the deep tray all the time?
Should I slowly remove the saran wrap from the top of their pot over the course of a week? Even with the saran wrap off they will still be under a 6" - 8" tall Jiffy Greenhouse tray humidity dome with the other high humidity plants.