Cracked tank

I have a 50G cube, i was gonna sell it months ago. But i havent been around for ages. It has a crack on the front of it. Starfire..... can it be fixed? or do i need to replace the full sheet of glass?
I was told maybe, because of where it is, I could silicone a 2" strip of glass along the bottom of it, and it should be good? the crack is 1" long.