Here's some good reading material from Oliver
http://www.fluvalaquatics.com/media/bluemill/explore/expeditions/journals/xingujournal_3_en.pdf
Thanks for the link - nice work by Oliver and a great read for us "armchair hobbyists" !! There is also a 1 or 2 minute video on the fluval.com site as well as some great pics.
Well done Oliver and despite it's commercial leanings, Fluval just stepped up a notch in my books for its support of this endeavor.