Well Santa, you have just confirmed once again to be the Oracle of all Algae Scrubbers as I woke up this morning to find tiny strands of hair algae floating around in my tank :x Seriously, never happened before only since you mentioned it :?
I have given the existing divider another damn good rough up with a dremmel and various attachments until I can get myself a suitable piece of Plastic Canvas; Incidentally what is the widest this stuff comes in? I need a piece 16" or at least 400mm in width as I don't want to join it :? The widest I have found is 13.5"......