They will work fine as long as you don't keep the root area soaked. You should come to the WADS meeting this Saturday. I will be there with a bunch of different bromeliads that are perfect for dart tanks. Or if you can not make it, I am in Renton. Check out edsflymeatinc.com for info.
I have Vrieseas, Guzmanias, Canistropsis, Neoregelias and Bilbergias. I will also be bringing a bunch of tropicals.