Tillandsia nana is species from Peru In the wild it grows at altitudes and receives fair amounts of moisture through mist, therefore in cultivation regular misting is important but still with good air-movement and drying out between waterings.
It has lovely light green leaves, produces nice pinkish purple flowers and pups prolifically making a good clump in a few seasons. It is rare in cultivation.
I have just a few small plants available. (see second picture)