Help me level tank to stand

[Dan_k]

I hope I can get some help here I'm a little confused on how this is possible

I built a stand for a 93 gallon cube standard 30"30" tank I built the stand 36"x36" for a bigger sump area so when I was building it always checked level over and over the top is level I even pulled the level across the top to look for low spots everything is good

My problem is the back right corner is up a little...I have for the top 2 - 1/2" sheets of plywood and a sheet of homostat which I was told you need to lay down on a rimless.
Here's some pics

This is the corner I'm talking about

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And here is the 2 sheets of plywood and homostat

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My question is can I unscrew the plywood and put some shims not between the ply and tank but in between the 2 sheets and since there is not trim do I have to worry about low spots any where
Because I'm thinking once I bring the edge up should I worry about anything in the middle more low spots
Thanks for all your help

 

[TrialandError]

Don't see why you couldn't put shims between the ply. Also every floor is different. What is "level" on one floor won't be on another.

 

[Jimbo662]

Is it the plywood itself that's causing it or the homostat? From the pic it almost looks lik the homostat is swollen.

 

[SloppyJ]

what is homostat? Never heard of it.

 

[Dan_k]

I thought it was the homostat so I removed it and still the same I think it's just a low spot in that corner
The tank and stand is perfectly level dead on just a low spot in that corner and I'm concerned if I shim it a couple inches past the edge might not be in contact with the homostat
Could that do anything?
I can't imagine it cracking the glass

 

[Dan_k]

I thought it was the homostat so I removed it and still the same I think it's just a low spot in that corner
The tank and stand is perfectly level dead on just a low spot in that corner and I'm concerned if I shim it a couple inches past the edge might not be in contact with the homostat
Could that do anything?
I can't imagine it cracking the glass

 

[Dan_k]

Homostat is a sound damping board.
My buddy had a tank built by coast2coast and they said he needed to put that down because it doesn't have plastic trim and glass should not come in contact with plywood

 

[SloppyJ]

I would NOT shim the tank. That's asking for trouble.

 

[Dan_k]

I'm not going to shim the tank just the 2 pieces of plywood

 

[ryecoon]

you need a Rubber foam mat they use for aquascape tanks

 

[ryecoon]