1.Missing pieces: We may miss some pieces when packing, please send us an email if any part is missing.
2.Leaking: Please make sure all pieces are assembled correct, adjust the o-seal ring on the top lid and put the filter lower than your tank, and make sure water can get through the green hoses smoothly.
3.Loud noise from the motor: You may need to check the impeller on the top lid if there is anything in it, and clean it. And then try it again.
4.Not pump water: Press the blue button on the top lid to compel the extra air out of the canister. And try it again.
5.The flow is slow: Add enough water into the tank, and adjust the cotton and medias.
Polar Aurora Good for up to 75 gallon fish tanks SunSun parts can be applied Flow rate: 264 GPH (1000L/hr) Pump Power: 18W Hose size: 3/4" Max-H: 4.6 feet3 media trays capable of handling your choice of filtration media; Comes with an adjustable spray bar. No Light!!!The three flexible media trays allow you to add other filtration media such as SunSun's activated carbons, ceramic rings or bio-balls to achieve excellent mechanical, chemical, and biological filtration
