Instructions
Attach the three suction cups to the small rectangular suction cup bracket.
Insert the small hose adapter or airflow control venturi nozzle into the water outlet on the filter. Make sure that the adapter's hole is facing upwards.
Push the airflow control device or venturi valve into the top of the nozzle.
Slide the suction cup bracket onto the rear of the filter and hold it securely in place. Then attach the filter to the inside of the aquarium. Make sure that the airflow control device/venturi valve remains above water level, in order to for the device to work properly.
Plug the filter into a nearby wall outlet using the connected AC Power cord.
Adjust the direction of the water flow by moving the horizontal water outlet from side to side. Change the water flow rate by switching the waterflow adjuster from "+" to "-".