Green Killing Machine 3watt UV Part# AAUV3W
 
A great solution for all small aquariums with green water
Designed for effect results on Aquarium sizes up to 20 Gallons
EZ Change UV replacement Bulb part # AA03W-UVC sold separately
Real UV Real Results 
UV bulbs lasts from 6 to 9 months if run continuely (not recommed once water is clear)
Reduce water changes
Helps eliminate cloudy water
5 min installation
Submersible unit assembly with suction cups for mounting to tank wall