I have a new 180 tank and am considering both of these filters. i am having a hard time deciding which to choose. The top of my tank is 5 ft from the ground floor. I plan to keep 3 or 4 large CA cichlids. My main concern, other than price, is ease of cleaning. Which canister is easier to clean ? Ease of cleaning for me means more frequent cleaning and therefore a healthier aquarium. I had a Fluval 406 on a 90 gallon at one time and the top of the canister was very difficult to lifit up, I have to pry it up with a screwdriver. And the pads would get dirty fairly quick, probably from overfeeding, and the flitler outtake would blow the food around too much. What are your thoughts on these issues ? Another factor is power. Which has the lower wattage ?