I am trying to remove the glass overflow box on my tank. I've scrapped off all the silicone on the edges of both sides. I can't really do much cutting between the glass due to the tight squeeze. I've broken parts of a few blades in the crack trying. What's the best way to remove the panels. I'm sure once I get one side free it'll all come off quick. It is very hard now since its attached from 3 sides each panel. I don't want to break anything from excessive force.