Water changes, less feeding. Like every other day or every three days. Maybe tone down the light cycle and more water changes.
Algae is caused by a few things... either not enough water changes, not big enough water changes, over feeding and lighting.
Oh and the cookies are awesome!! I got crumbs everywhere while typing this lol
"When creating an aqua scape, strive for the beauty of imperfection, as its art and there is no wrong or right, it's left open for interpretation" James Findley