ZY-M2 4W Aquarium Fish Tank Internal Air Filter

ZY-M2 4W Aquarium Fish Tank Internal Air Filter
1.Super power, propeller design.
2.Make water clean,Reduce peculiar smell.
3.Forming nature of water, increasing the ornamental, help clean the tank more thoroughly, increasing the fish from the water exercise, increase the amount of dissolved oxygen.
4.Water level must be higher than that of motor, avoid the damage of the motor idling.
5.Waterproof and good performance of insulation.