alright i have had the filter (aquatop CF500uv) set up for about 3 weeks now water flow is still great i also am using an aquatop ph16 power head and a marineland maxi jet pro 1200 power head. the filter is not really the best built but it isnt weak taking it apart and putting it together is easy and as long as your not cranking down on the handles i dont see there being a problem. i am using the floss pads in the bottom compartment and ceramic rings in the other 3. i havent used the uv
really at least not yet but uv
light will instantly kill bacteria if exposed slow or fast.