Algae Scrubbers have been around for a while and you can possibly construct your own. But this unit can save you a lot of time and trouble. Features such as warm white flat plate LED's, and sucker attachment will make life easy, and its been used in my various marine aquariums. The units have had a dramatic effect on nitrate and phosphate levels and the proneness to algae outbreaks.
It is A COMPLETE PRODUCT INC LED LIGHT, AIR PUMP
TIMER, VALVE AND ALL READY TO USE.
JUST NEEDS 2 SOCKETS!
See LOTS OF RESULTS ON Facebook