Foam under tank?

[heyfredyourhat]

Heres what i did on my tank....I put the sump inside the stand, filled up with water, and then i poured table top epoxy over the top of the stand(after it was in the right spot of course) I used 2 gallons to make about a 3/4" or so perfectly smooth and level surface. That stuff ios amazing stuff. I def. recomend, the only problem is it is in florida and shipping is about 2-3 weeks away!....Then i put 3 sheets of that really thin white foamy stuff then my tank. One year later still as level as ever, and still holding water....knock on wood