I know the feeling, while my largest tank is only a 75 it's a real schlep to clean compares to my 8's or 15's. Nerite snails are great algae cleaners, make tonnes of solid waste but if you have a good flow system it shouldn't be an issue 
They keep even my hi tech tanks spotless, nothing on the glass at all.
They keep even my hi tech tanks spotless, nothing on the glass at all.