DIY frag tank
 

I want to build a custom aquarium and I don't mind siliconing the glass together myself. The dimensions of the tank I want are not sold pre-made.

Where would I go about finding a place that would cut the glass to precise measurements in Richmond BC?

Try Speedy or Broco glass.

Ask them to 'arris' the edges at the very least. This takes the sharp edges off.
Or better yet, pay for edge polishing.

Ill give speedy a try just dont want to keep cutting new pieces of glass because they keep cutting the wrong measurement