The way I silicone the tank was I set up the glass with a 1/16 gap between the glass. I use tape and corner clamp to hold it together not put pressure on any piece so that it wouldn't try to rip its self apart once I remove everything. Then I basically injected the silicone into the gaps making sure there were no air bubbles in the seam. It worked out there well still have a few bubble as this is my first tank build