I recently purchased a tank second hand. the tank is about 7 years old. water tested it and it held water fine. I noticed when i purchased the tank the interior silicone was starting to peel away in a few places. Drained the tank, I scrapped out the silicone, cleaned it properly and resealed the inside. I never got the razor blade in between the planes of glass. I used SCS1200 - about 3 tubes. The new internal seal is about a half inch thick and used a caulking tool to get a nice thick bead all around. i let the caulking cure for a week before filling the tank.
Last night i noticed a cloudy colour in the caulking of the primary seal in between the 2 panes of glass. it doesnt appear to be the usual air bubbles forming when the seal starts to fail. im not seeing any real separation. theres nothing at the top, it grows to about the middle point and then tapers back into nothing again.
anyone know what this could be? should i be concerned?
pictures below.
![20230202_054101.jpg 20230202_054101.jpg](https://test.reef2reef.com/data/attachments/2930/2930427-fb9d1303724497746d6496d085024e14.jpg)
Last night i noticed a cloudy colour in the caulking of the primary seal in between the 2 panes of glass. it doesnt appear to be the usual air bubbles forming when the seal starts to fail. im not seeing any real separation. theres nothing at the top, it grows to about the middle point and then tapers back into nothing again.
anyone know what this could be? should i be concerned?
pictures below.
![20230202_054101.jpg 20230202_054101.jpg](https://test.reef2reef.com/data/attachments/2930/2930427-fb9d1303724497746d6496d085024e14.jpg)