Depending on how many and depth of scratches it might not be worth the effort or $$. Keep in mind a dry tank with scratches looks way worse. Once you fill it the scratches kind dissappear. My tank has tons of scratches but I hardly noticed anymore since you're looking through and past the glass. I really only notice when surface algae starts to collect in the scratches grooves but even then wipes away easily with a magnet cleaner or tunze magnet scraper. If the tank is so badly scratched thar it bothers you then you might be better off getting and new or used tank.
it’s a dry tank. The scratches are not deep but looks like a lot. Tried to do it myself but it didn’t come out that good so trying to find some professional help
I looked into this awhile ago when I bought a 180g off some guy and didn’t realize how bad the scratches were until I saw it under light. Called around and no one does aquarium glass so I just said f*** it and bought/found another tank. Just wasn’t worth the hassle trying to fix.
Agree, might not be as noticeable once filled. Just depends on what you would be okay to live with, but for monetary purposes I’d fill with tap and see how she looks.