Bulbos are a fave of mine. I have this as well but all are either hanging in mesh pots with moss or shallow pots in moss. Have sev. mounted which would be small enuf for a terrarium setting and that for me is not practical. They stay moist and a bit warmer in a south window or on edge of grow lights. Some certainly more challenging than others...
. They need to stay wetter than hanging like that can provide and medusa can get HUGE. You'll hear from others and hopefully see fantastic results of theirs with great culture info.