As far as plants I think you should have a few bromiliads, and as far as moss sphagnum works well but does not look good, go with green moss,( found at the garden section of HOME DEPOT or LOWES). or what looks really good is riccia moss, which is wonderfuly shown in the vivarium construction section of
http://www.brianstropicals.com, you can buy some at
http://www.aquabid.com.
