The Aquarium  filter with Suction cups,can be attached the glass of aquarium before plug in the power.

The motor and pumps is on the top half of the aquarium filter ,so the aquarium  filter must be  submersed fully under the water.

After  Pulling  the plug from power ,you can  disassemble the spong filter to clean the filter material of the bottom half of the spong filter.

Spong and bio can be re-used for  2-3months.

The price is only for reference,pls contact us to reconfirm.