Most masdevallias like a night-time drop in temperatures, which sometimes does not happen in a terrarium. I personally do not grow in a terrarium however I’m sure with the right environment and conditions some Massies will do well in your terrarium why not try with a couple of miniature hybrids, sorry I cannot be more helpful, but you may be able to get additional help from members of our Facebook group. By the way thanks for watching the channel.