Matt In Fenton wrote:

From what I have seen of fish tanks the only thing supports the bottom
is the plastic framing. Which I would recommend, if there are cross
beams to make sure those are supported. But to support the actual
glass, may not be a good idea.

I prefer my tanks with a solid top just in case of spills. But what I do is
put a sheet of 1/2" rigid foam insulation between the tank and the stand to
absorb any irregularities.

If you look at the bottom of your tank you'll see that the glass is up off the
stand by a fraction of an inch. It only touches anything when/if it sags.

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It's turtles, all the way down