5/8 inch tempered. (same thing I used for the bottom pane on my 125g)
yes and no. glass thickness has to do with how large the pane is X how much volume is on it. because a 90 has a lot more weight than a 40 breeder but have the same footprint. yet there is about 415lbs of volume weight difference between a 40breeder and a 90 tall. and a 40 breeder has a 3/8ths tempered bottom. where the 90 has 5/8thsGlass thickness has nothing to do with the volume of the tank but rather the size of the largest price of glass. Just google/bing aquarium glass thickness calculator. But I will guess 12mm.
Sent from my DROIDX using Tapatalk
That's no fun. You might find it less expensive to just get a new tank. Be sure to check prices carefully.Not wanting it drilled.
I just broke the bottom glass on one of my 90's.