Bottom of Tank is Bowed

[freestone]

I just finished the stand for my 75 gal AGA. The top of the stand where the tank sits is flat and level. The bottom of the tank trim has a slight gap where it sits on the plywood at the back. The gap is between 1/32" to 1/16" and is about 30" long. Is this something I should be concerned about or will it fix itself when water is added?

thanks.

[cdbias2]

"The top of the stand where the tank sits is flat and level."

Something tells me this isn't true.

[bj32482]

shim it, almost all tanks that sit on a rim will have a gap somewhere.
I had to do this with my 180, so it is normal...

[tank o tang]

never shim a tank only a stand. chances are that tank is straight and the wood is warped or twisted.

[bj32482]

yeah, thats what I meant

[marinoob]

yeah dont shim the tank only the stand but make sure top of stand is not warped also

[freestone]

Thanks Guys.

I'm pretty sure the stand is flat. With a metal straight edge on the stand there is no gap. With straight edge on bottom of tank there is the gap as mentioned above. I get the same results if I flip the straight edge over, so that is not the issue. Is it possible that the caulk on the tank glass could be pushing the bottom rim out a little? If that is the case then wouldn't it flatten out with water in it. I am a little scared to add water yet for fear of cracking the tank. This is the largest tank I have ever dealt with and never had this happen before. Not sure what to do.

[cdbias2]

Return the tank to the LFS if you can.

[tank o tang]

If you cant return then put a piece of insulating foam then a piece of thin ply on top of that then the tank. JMO