I have a mag float & over time there are alot of fine swirl scratches on the front inside panel of my acrylic tank what is the best kit to use to get rid of them I get alot of coraline on the front bottom & think that it is getting on the mag float & causing the scratches I've used the pro scraper for acrylic & also the algae scraper pads for acrylic & they all seem to leave scratches is there a better item to remove coraline & algae from acrylic without scratching???:cry:
