Hi everyone! I’m setting up my first tank and I noticed this small scratch (or hairline crack?) in the inside top corner of my 55 gallon glass tank. It is less than an inch and you can only really feel it with your finger nail and it’s not that deep (maybe a mm). The scratch (or crack) would be right at or above the water lever (if that makes any difference). Do y’all think this is something to worry about? I noticed it after I drilled the holes otherwise I’d just return it. Any thoughts? (Pictures below). Thanks!!