After stripping down my EX700 and thoroughly cleaning it, and the pipes / bar / connectors etc I thought I'd measure the actual output to see what my water turnover was. I was expecting a figure less that the 700lph Tetratec claim, but I was very surprised at just how low turnover I had. I have a 170l tank and the EX700 is only giving me approximately 290lph (without bar) giving me less than 2x! I think another filter is required. So I was thinking, what performance does everyone else get from their filter(s)?