it must be acrylic i am assuming, anyway yes they do sell kits to take care of those. i think the one i bought from my lfs was from sea clear, which was the maker of the tank i had scratched. it actually worked really well, there are like 8-10 grades of sand paper and you just go step by step, at a certain angle you can see were it was done, but with water in it and the light on looks good as new. just follow the instructions to a "t" and you should be alright. actually now that i think about it the most important thing to do is pick a space maybe in the back or on the top and try it, so you can get it down. sorry i dont have the name, but just ask your lfs or surf the web. there is definitely kits out there. good luck!