[jslaney]

Thanks for the advise guys,

A little background on the tank:

The Tank is a 70 gal Bow Front (BF) and was bought second hand. The previous owner had a small leak in the front and that is why he was getting rid of it. I bought it and brought it to Calgary from Van. Once carfully inspected I found out why he had the leak. There was a 4 mm gap in between the tank and the stand in the front. I think the wood might have shrunk in the dry air in Calgary. Anywho I tried to fix it by replacing the support studs with longer studs but because it is a BF it was a little more difficult then I thought it would be.

So here is where I am:

I still have a 2 mm gap. I intend to buy a sheet of Ply and do as suggested with the shimming. Unfortunatly the small profile on the stand will not be enough to use trim to cover any foam. In addition its a BF so I dont look forward to trying to curve the trim. Handyman issues.
The tank only touches the stand on the outside perimiter of the tank so I am not sure I want to use a sheet of styrophome. I was thinking more of some kind of strip stuff. Maybe some sort of weather stripping. The problem with the pink and blue stuff is that it does not compress much.

Thanks for all the advice. I hope it keeps coming. I am sorry to hear about a crack in the bottome of your 120 gal. That must have been a frickin nightmare. More incentive for me to get this right.

Thanks again,

Jon