In addition to my previous post, this link should help a lot http://www.aquariumpros.com/articles/algae.shtml
From a quick read - It does say that even though it doesn't receive direct sunlight, the algae will grow faster if it's close to a window.
I hope you solve this soon, as it will only get harder as time goes by.
From a quick read - It does say that even though it doesn't receive direct sunlight, the algae will grow faster if it's close to a window.
I hope you solve this soon, as it will only get harder as time goes by.