Well, it's not exactly a viv or paludarium, but I thought I'd share my little cube My daughter and I put this together a little while back. It seems to be holding up well in a low light environment. Sand, rocks, snails and Java fern. The glass is not smooth so there is a little bit of distortion, but its still pretty cool. I have another empty cube that I will spend a little more time with. I hope to create that one in the coming days.