Hey everyone. I recently bought a second hand 180g tank . Tank was built by miracles it’s 180 gallons top is rimless & bottom has interior euro bracing as well as plastic trim on the outside . I noticed there was visible air pockets in silicone work between the euro brace and the bottom pane of glass. Is this cause for concern ? I have shared a video . I’ll also be emailing the manufacturer to get their opinion as well. FWIW prior to buying the tank I did inspect it when filled and there were no leaks . The corner seams are in good shape . Hopefully this is just a cosmetic issue and doesn’t effect the structural integrity of the tank.