white foam board

[jun]

wats the purpose of putting the white foam board below the tank?

[neokn]

I reckon, to even out the weigth and at the same time if the base isn't straight the foam will be compressed by the tank and water to a blance level. I could be wrong.

[arcanehacker]

also it acts as a buffer.. if you were to place on a hard top, your tank may crack.. not to mention the temp causing stuff to expand and contract slightly.

[ervine]

last i heard is if there's a point load or uneven load in your tank, the foam is supposed to help distribute that load and prevent the glass from cracking... in any case, better be safe than sorry!