Thanks for the replies. I will have a browse through the site to see what I fancy then.

I have kept cold water fish and then tropical for years but want to keep something a bit more special. I had corys but my tank wasn't ideal (no under-gravel filter this time) and I loved them (they thought they were danios and used to top-feed!).
I want to have a 100 liter tank set-up a a bio-trope ...