The TetraTec GS45 is highly effective at cleaning aquarium glass quickly and with minimal hassle. Built specifically for the removal of algae from aquarium glass, it consists of a hinged blade holder attached to a long, plastic handle, to enable glass to be cleaned easily, without the need to get wet. The GS45 safely uses replaceable blades, which are more efficient than traditional scourers at removing algae. Side protectors ensure that silicon sealant is not damaged during the cleaning process.