[Fionn_Matt325]

i have problems with green algea myself. i have a whole bunch of snails and a algea blenny. my rocks are in good shape, but my glass is left with spots and tiny trails from where the blenny is able to scrape and snails move. but in the long run all you get is a poke-a-dotted patterned glass.
i tried the scrub brush too with little success. my mag float seems to do the trick for me (except the back, because my Red Sea Max is set up in a way that i can't.)
that's when i found the glass scraper at my LFS. it's essentially a razorblade on a stick. the sell them in metal for glass tanks and plastic for acrylic ones.
it works great. the green built up on the back wall of my tank, and was a little rough to remove, but the scraper did the trick.