Ahh! So Ricky_Reptiles was right. You thought the vivs bp people are talking about are bioreactive ones. Sorry. I thought you saw the regular vivs and saw the bio-reactive vivs and wanted to try your hand at the bio...
So, if it's just naturalistic look you want, then yeah, loads of people - especially in the UK - have tons of ideas. My avatar is one of my vivs.
Yeah, no I mean I'm not really considering changing my current setup but this post was pure curiosity. I'm really really into bioreactive vivs, and I figured it could possibly be a future option. But now I'm thinking probably not. 8)