Read and Follow All Safety InstructionsInstalling the Pump and FilterLift the filter cover. Rinse the tap water and insert the filter cartridge.Connect the airline tubing to the filter's diffuse and Air Pump.Install the filter inside the aquarium by pressing the suction cups against the aquarium glass. (Note: The spillway of the filter should be at the water level in the aquarium, and the diffuser should be at least one inch above the aquarium gravel.)To prevent water from siphoning from the tank to the Air Pump, place the pump securely on a shelf higher than the water level in the aquarium. Do not place the Air Pump directly above the aquarium where it may fall into the aquarium. To place the pump on a surface lower than the water level of the aquarium, install a check valve (sold separately) on the tube between the aquarium and the Air Pump. Note: The check-valve should be attached close to the air pump nozzle. The check valve prevents water from siphoning into your Air Pump in case of an electrical power failure.Plug the Air Pump creating a drip loop in the power cord and airline tubing. Maintaining the Pump and FilterThe filter cartridge should be replaced every two weeks (or as needed). To change cartridge, unplug the Air Pump to stop the water flow, remove and replace the cartridge, then re-plug the Air Pump.Remove the filter cartridge when medicating fish, as it absorbs most medications.Clean the outside of the Air Pump with a damp cloth. When cleaning the filter and Air Pump, unplug the Air Pump. Do not use detergents or soap, as residue may be harmful to fish.
Tetra Whisper Internal Power Filter 3i
Aquarium Size: For Aquariums up to 3 gallons
Gallons Treated: 20 GPH
Model: Model 3i
Tetra Whisper Internal Power Filter 10i
Aquarium Size: For 2-10 gallons Aquariums
Gallons Treated: 90 GPH
Model: Model 10i
Tetra Whisper Internal Power Filter 20i
Aquarium Size: For 10-20 gallon Aquariums
Gallons Treated: 125 GPH
Model: Model 20i
Tetra Whisper Internal Power Filter 40i
Aquarium Size: For 20-40 gallon Aquariums
Gallons Treated: 170 GPH
Model: Model 40i
