If yer REALLY lazy, get yerself a clean up crew. They'll clean for you, no prob. That, and an Algae Blenny. They eat the stuff, that;s their food. Then, if you feel that the job aint good enough, you could get a mag float. But they will keep ya good. If you get one snail for every gallon of water, and a bunch of hermit crabs and a blenny, they will not only eat yer algae, but lower yer detritus levels which will in turn lower yer algae levels. Sweet deal, eh?