Cutting down tank?

[ronau]

I'm sure it can be done but there is a risk of FUBARing it. You would probably have to remove all the silicone to the level you want, ensuring panes were separated. Then you would have to score it, pray (optional) and then tap it gently to have it crack along the score line. Have some sand paper on hand to go over the edges and then silicone on the rim.