That is bad...real bad. I would return asap. That's just not acceptable IMO.40g 36+16by 15 I was making a mount for my led light not made for this tank and took some measurements. And the tank is bowed out almost a 1/2 inch in the middle and now that I look at it you can see the bow too.
If you push in on the middle of the tank at the top on the black rim you can see it move.
So my concern here is could this fail and break ?
Is it possible the lfs sold me a new reptile tank as a fish tank ?
Cant imagine its ok for this to happen! The glass to bow