1. Gather the necessary materials. You will need the filter, a filter cartridge, an airline tube, an air pump, and a check valve.
2. Assemble the filter. The Whisper Power Filter 20 has a two-piece design. Place the bottom half of the filter on a flat surface and then place the top half on top of it. Make sure the two halves are securely snapped together.
3. Insert the filter cartridge. Open the top of the filter and remove the filter cartridge. Rinse the cartridge in clean, cool water and then place it back in the filter.
4. Attach the airline tube. Connect one end of the airline tube to the air outlet on the filter and the other end to the air pump.
5. Install the check valve. The check valve is a small device that prevents water from flowing back into the air pump. Install the check valve between the airline tube and the air pump.
6. Place the filter in the aquarium. Place the filter in the aquarium so that the intake is submerged in the water and the outlet is above the water level.
7. Plug in the air pump. Plug the air pump into an electrical outlet and turn it on. The filter will start working immediately.
Here are some additional tips for using a Whisper Power Filter 20:
* Rinse the filter cartridge regularly in clean, cool water.
* Replace the filter cartridge every 2-3 months.
* Clean the filter housing and impeller every 6-12 months.
* Adjust the flow rate of the filter as needed.
* If you have any questions about using your Whisper Power Filter 20, consult the product manual or contact the manufacturer.