Originally Posted by
AquaKnight
http:///forum/post/3237611
Excluding overflows, there are literally only 3 parts to a tank, the glass, the braces, and the silicone. No tank manufacture actually makes their own glass (they do cut it), all tank manufactures use the same GE RTV108/3 silicone, and all tanks basically have the same bracing.
This leaves a few things, quality of assembly, and user error. Admittedly I didn't think of the glass thickness being an cause, and could be a 3rd cause.
Look closely at his tank, It looks like the front left and right corners were round. So that means that tank has 3 pieces of glass. That design, is significantly weaker than a more standard design. I know the one I had, it was light enough for 2 people to carry it up 3 flights of stairs. But it was glass. That is crazy for an 180 gallon tank. I know for a fact my tank wasn't user error. I've seen about 5 or 6 people with those tanks locally and online, and well I can only think of one that didn't fail. But I lost track of that one.