Well,
On the thought of Tolumnia in the vivarium I would say that it would work out but only in certain types of tanks and only in certain positions.
Most of the time Tillandsia(non orchid) are not typical inhabitants of vivariums. However, with proper light, placement and most importantly air circulation, I've seen it done. Same goes with Tolumnia.
I'm going to try a Tolumnia in my next tank and maybe my current one so that I can speak from experience but a lot of people equate terrarium/vivarium with stagnant conditions and with computer fans and other goodies, that does not have to be the case.
So, I would say that Tolumnia is in the "difficult" category of vivarium/terrarium growing.
