How well you maintain the water parameter, still the algae will appear.
That's why constant husbandry is important. Once the lazyness starts, algae will bloom. When lose the battle, that's where the decom starts also.
Normally, after 3-4 years, the tank will stabilised, less algae will flourish and will enjoy the fruit of your labour.
I had a 2feet tank before, and algae is always a menace. After 4 years, not a algae in sight, probably due to my deep-sandbed at my sump, running around that duration. The only algae is the purple ones..