Bubbles Under Silicone

My brother’s ten gallon tank has some air bubbles underneath the silicone, and we noticed it durning a water change.
Would the tank need to be replaced? I wouldn’t want to come back to a tank that exploded with water everywhere.
I circled the bubbles that are visible.

 

I don't think that would be a problem... if never had this before but a ten gallon is fairly small so I wouldnt be too concerned

 

Poorly made I have a 300ltr tank air bubbles in the silicone right in the corner no problems not ideal but holds up seen tanks much much worse holds up wouldn't worry about it esp where it is in on your tank it's not structura but certainly unprofessional I just actually sent another 4ft tank back due to excessive bubbles not hard to use a silicone gun to get proper results but being a smaller tank in a non structural area you'll be fine mate quality workmanship is long gone

 

I wouldn't be concerned about that.

 

Okay, just thought I would ask, it never hurts!

 

It's always better to ask any time you are in doubt.