Best way to clean algae off of liverock?

[NU-2reef]

Ever try starving the algae with a blanket of chaeto?

So take a ball of chaeto and spread it out like a thick blanket. Weigh it down with live rock and leave for a couple days then check. Repeat if needed. The idea is to have chaeto out compete for nutrients thus starving the algae of light and nutrients. I would also do a fuge with miracle mud and macro algae.