Warm Tips:
1. For use in aquariums of all shapes and sizes with a minimum depth of 8.5”.
2. Depending on aquarium depth, you can add the extension tube or extension nozzle.
3. Insert the unit in aquarium and turn it on. Move the tube gently back and forth along the bottom of the aquarium.
4. You may see there are some water drops on this device when you unpackage it, because every unit was tested in water to confirm they could work properly before delivery.
