do not drill the 29. almost always tempered,,,, unless you can find specs on that tank and figure if its tempered or not, do not try it, you will have a hell of a mess.
whats the cap for???
Sounds dumb! But I don't know!
And the bottom is tempered but the rest is not!!!
Plus I've got plans for a 90 wide 48"x24"x18"tall plus two 29 gallons all on the same sump and tall homemade stand (one piece with a "bar" and stools so I can have dinner "at the tank"
The tank I'm getting has a center overflow just like this and yes all glass(less scratches)