Matt, thanks. The glass you cannot feel anything on either side. I wonder if its from being strapped down in move and some bumps.
If it’s just a reflection. I feel the tank is safe. Chips don’t really effect tanks much. Just cracks. And I see no cracks
You might want to take a look at the sand that @Premiumaq carries. I have two bags of it. Once I upgrade to RR tank, I will be using what I have and ordering additional sand. It's really nice! Here is a video
What size grain do you plan on using?