I can't seem to get rid of this damn algae. Wondsring if its diatom or something more serious like cyano. It produces bubbles under lights. Under dark there is nothing.
http://tinypic.com/r/2d0l66d/5
http://tinypic.com/r/28b8uj5/5
http://tinypic.com/r/2v1qmty/5