Greetings everyone, my tank is almost 3 weeks old now and I have noticed these wavy lines in the top portion of my sump in the front and back. This was how it was delivered and I can't tell if it is some type of stress crack or maybe some glue mess that was done while adhering the inside ridge to the sump. Please take a look and see what you think? the glass feels smooth on the inside and out. Maybe it is some type of salt creep in there? I have notified Red Sea support and sent them pictures and waiting for their opinion also.