My GF just a few minutes ago dropped on me; "Hey hunny, I think your tank has a crack in it". Needless to say, my response was less the settling... Well, it wasn't quite a crack, but rather would looks like a 'bubble' in the lower right corner of my sealing/silicone. I'm not sure I've noticed this or not, but should I be worried? I can't seem to get a good picture either, camera isn't too good. EDIT: waitwaitwaitwait. I just looked at a picture from when I got the tank.... And it's there. Still don't know if this is a good thing. Lemme post pic. It's in the lower right hand corner!