So I have started my upgrade from my 15 gallon to my 75 gallon. It started with my custom glass overflow. Fortunately my work just bought a brand new waterjet and I was able to use it for my project. Here are the cut parts before I assembled them.
Then Came the water test after I assembled the inner and outer box.
Then Came the water test after I assembled the inner and outer box.


Going to look even better when you start adding coral. The tomini will claim one of the caves/arches in no time, lol (mine did anyway - also got from Dr. Reef).

