Thanks still waiting to find time to finish it off.
As for your question about the FX5. I haven't actually had this (or indeed any) tank running, I can confirm that the filter does fit in the cabinet, just about, as for ease of maintenence I'm afraid I can't enlighten you as yet.
hey HappyGeorge did this post end? Hows your set-up to date? Did you find that all the ingredients used for your backdrop have worked okay? I'm looking a starting a similar (much smaller!) 3d background project.