Worry or not?

[friendlyAlien]

I got this new tank and it has been up for two months. Now that the algae is moving in, I see a small bubble in the seal. a little bit of dust and algae moved in. When asking the seller about it, I don't get a lot of warm fuzzies other than "looks like it is not structural" and lots of questions trying to tell me how I might have created it the problem.
Anywho, my question is: Next week I am supposed to get the live sand and the true journey starts. Should I do something before adding live sand next week?

What do you experts think the risk is here and what I should do?

 

[Stevorino]

I wouldn't worry about it at all.

Maybe check to see if anything has changed in a few months against this picture

 

[Tamberav]

what brand and size of tank? Looks like it could be a defect

 

[friendlyAlien]

what brand and size of tank? Looks like it could be a defect

Its a CADE.

 

[friendlyAlien]

Just to close the loop on that. After some delay CADE decided (without me pushing for that outcome) to replace the tank under warranty.

Amazing!