http://cgi.ebay.com.au/Odyssea-CFS-...229695?pt=AU_Pet_Supplies&hash=item5d2de967bfi was thinking of getting this and seeing what its like. It looks like it would hold alot of media and has a good flow rate. I imagine the actual flow rate would be more like 1800-2000lph. Would this be a crazy waste of money or worth a shot?