need to reinforce stand?

[findingnemo1]

Hi there.

I built a stand for my 90 not that long ago. I used the idea of the metal stands you can buy that are pretty much just holding the perimeter of the tank. Now the stand is made by 2 2/4's stacked on top of each other width wise and then 2/4's everywhere else.. I then have steel bars going around the back just under and beside the 2/4's/ The only thing i didn't do was put a piece of plywood under the tank. Now thinking i am a little worried. It does have the foam piece but really i am relying on the outside of the stand. Pretty much it looks like a metal stand with wood.


Should i be worried the bottom of the tank is going to crack and cave in?