jks1 is right u need to buff them out. I went down to a local glass repiar shop and they said they would lend me the buffer and thhe rubbing compound for a $40 deposit. So i did. Draind the tank and started buffing it was a little harder than i thought i think im gonna give up on removing the scarthces. btw
the way it works is you pput the buffer on the glass and atack it to a drill then you buff until the glass gets hot and you "mold" and"buff" the scrathces out while the glass is hot and flexable. although i never did reach a tempreture the actullay do that. and also a drill is preetty hard to manuvre in a GLASS aqurium.