Scott's 270g aka Project Mayhem

[gregzz4]

Originally Posted by reefwars

removing the plywood is going to be impossible as we build the tank on it and seal it tight

OK - I kinda thought I saw silicone there

Yes, shimming between the tank ply and styro won't do anything
If Denny is comfortable with you filling it as is, go for it

I can see where shimming only the outside edges may pose a problem as there's no 'trim' that the glass is sitting on