Welcome to the thirteenth part of my Madagascar BiOrbAir Terrarium Trial – growing epiphytic orchids, which are endemic to Madagascar, inside the BiOrbAir terrarium.  I first planted this Madagascar BiOrbAir Terrarium in March 2017.  So, at the time of writing, in August 2019, this Madagascar BiOrbAir Terrarium is now two and a half years old.  In this update, it’s a pleasure to show you a few of the twinkling, crystalline flowers of Aerangis hyaloides, alongside the beauty of the snow-white, pendent blooms of Aerangis citrata, as they fade.