Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not so quiet, works well, but needs a lot of maintenance

If you're looking for a "no-noise" filter, I recommend buying a hang-on-back type filter. This canister filter is strong, the motor hums pretty loudly. Been using for 6 months now on a 60 gallon tank with 40 African Cichlids, even with an Aqua Clear 50 as a secondary filter, the xP3 needs bi-weekly cleaning. I have sand substrate and live plants so there is a lot going on. I have to clean it every other week now, the first 3 months it was working flawless without any cleaning. I guess it's time to replace all the media, they're pretty expensive! For the price, it is not worth it! I could have bought 5 x AquaClear 50 and they would have done a way better job!!!