Any ideas on better ways to get these cleaner or less visible. It's a 150 long used out of a fish store going out of business. I'm going to do a diy background and sides so the front is important. I'm getting back in the hobby. Thanks for your input.
I think it's going to be awfully hard to get those scratches out of glass. I'd suggest filling the tank, as deeda mentioned, to see if they're not as noticeable. If that doesn't work to your liking then I would honestly look on Craigslist for another tank.