What is a terrarium?
According to WEbster: a vivarium without standing water
In some competition circles: enclosure containing no more than 10 percent water
However, we aren't so strict. For the purposes of this forum a terr is: any transparent more or less sealed enclosure including desertariums (WITHOUT lids, or with a LOT of air flow!!!), paludariums, vivariums, orchidariums, etc.,