My daughter is off to college and I moved her tank from her room to the living room. She always had an issue with Algae. So much so that it looked more like a Refugium rather than a fist tank. After all the cleaning and water changes carpet algae keeps growing in thick. Phosphates, Nitrates constantly near Zero. Added a Tuxedo Urchin and it looks like it is grazing about a square inch per day. Will be interesting to see what happens. Just wanted to relate my story.
Cheers.
Cheers.