Making Cube out of 2 x 33G?

[sphelps]

any glass shop will cut some glass for you, last time I was in Calgary I used Speedy Glass. It should only cost around $60 for the glass you need, might be better just to sell the 33 gallons you have. Disassembling a tank is actually harder than you might think, you'll probably end up chipping the glass somewhere. Plus cleaning off the old silicone can be a pain.

I would personally also use a small Euro Brace, if you run a 2" wide strip in 6mm around the tank you'll eliminate the bow which I'm sure you will get without the brace. Either that or use thicker glass, 10mm.