You are much more likely to have luck with the real thing. Tillandsia usneoides. The lichen will most likely die fast and rot. It's not so pretty in the viv. Tillansia usneoides will grow in the vivarium however. I have grown it in some of my larger vivs in the past. It will like to be up high closer to the lights and kept more on the dry side. It's one of those plants that likes high humidity and good air flow.