Is this overhang too much?

[Jekyllandjavert]

I recently got my 15 gallon fluval flex tank set up and running. The fish love it. But after spending ages trying, with my dad's help, to get it just right on the anti slip pad, there is still a bit of overhang in the back. It's still over the stand, it's just slightly over the anti slip pad. Is this too much overhang? Do I need to empty the tank and try to place it again? I apologize that I could not get better photos. Space in the back and on one side of the tank is VERY limited here in my 1 bedroom apartment.