Don't know why anyone has not commented yet, but I use the Ocellaris 850 (Standard) on my 240ltr tank (Mid stocked fresh water with Platies and Various Barbs)... I can say that for a dirt cheap canister filter, it is damn good... Been running this filter for about a year now, and I've had no issues with it at all... I love the way the trays lock together, the simplicity of its function, and it's sintered glass noodles and stones (Which in my opinion work really well for bacterial growth). This filter is easy to maintain and service. The flow rate is not as high as I'd like, but it does a great job of cleaning my tank. I open it every three months to clean it, and I'm surprised each time by the amount of muck it collects. My only advice here my friend would be:- Get yourself some better foams, put all your mechanical filtration in the bottom tray (Course, fine sponges followed by the filter floss), then fill the remaining two trays with all the sintered glass noodles and gravel (that which is supplied), and some Alfagrog (as I know that Aqua One do not supply enough Bio-media to fill both trays)... Also as a side note, keep your piping clean or your flow will reduce in no time (I do mine every four weeks or so. You will not regret it). Good vid, good luck, and happy fishkeeping!