Hey guys, Ive been using the old glue on adjustable razor blade for hard algae. There has got to be something better. Not to mention I am now out of the blades and the LFS doesnt carry them anymore. And I dont have the package to find them on the net. I also have the Super algae cutting bags with my mighty magnet. It will not take off coralline aglae. So lets hear what you are using!! And a razor blade in my hand just wont cut it. I cant reach everything.