If you can but I fluval 404 for $100usd I would by it up, maybe two and sell the other to someone else. They are around 170 or so in the stores I believe. I have never used the 4 series of the fluval models but I have used their previous 3 models. I did love how well it filtered but what I didnt like was how it seemed to be difficult to put together/take apart for cleaning. I felt that there were alot of componets to it that I didnt want to deal with. I am a huge fan of the Rena xp models, they are about they same amount of money new but if you look closley the Renas pump more gallons per hour and have more filtering volumn. I would choose a Rena over the fluval any day normally but at the price of $100 i would get the fluval.
