The owner of a local shop just showed me this book earlier today. It's one of the newer titles from Barron's publishing:
http://www.amazon.com/exec/obidos/tg/de ... oks&n=5054
(Jool's how do we hook you up with some coin from the link?)
I just had a chance to page through it a bit, but the quality of the book and information included appear quite good (typical for the recent Barron's pubs.)
The book would show an image and description of a particular biotope, go on to explain the fishes typical for the area, then illustrate how to recreate it in your tanks. A neat approach that I hadn't seen addressed in such depth before.
Timely eh!?
Paul E. Turley