Can anyone recommend me a good algae scraper for a 125 gallon tank. I think it's about 24 inches deep. I have heard that the kent proscrapers with stainless blades work good but I am apprehensive as I have a stainless steel scraper now and I have to press so hard to remove any algae that the metal just bends and creases. I was wondering if they might have a scraper with a very sharp edge such as a razor blade instead of a piece of metal.