Hello; That piece of glass is on the inside, correct? The picture is of the area before you siliconed around it, correct? It does not appear to be structrual to me. As a guess, I have siliconed pieces of glass to the bottom of tanks in order to hold structure in place when creating tiered levels in tanks. It could be there for some other purpose of course. It could some how be structrual.
Sounds like you have decided to try sealing that small area. Good luck. I have on rare occasions gotten away with such attempts.
Sounds like you have decided to try sealing that small area. Good luck. I have on rare occasions gotten away with such attempts.
