Actually, what/how much are you feeding the tank? What is your loghting cycle?
If it is algae, it lives off of
DOC and Phosphates. Reduction of these and regimented PWCs, should lower the former two and reduce your algae.
Do you have a clean up crew?
If you update "my info" with your critters/equip/tank size, we might be able to help.
My
LFS rarely has algae in their tanks. I am pretty sure she doesn't scrape them everyday....