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

[denny_CC]

Originally Posted by gregzz4

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

with large tanks we build right on to the plywood, because of the strength of the silicone we use once cured removing it would be alot of work and would more than likely end up with chipping/shelling the glass.

the plywood base is used to ship safely and so the tank can be slid around untill its filled with no damage to the bottom.

for smaller tanks we build on a foam base.

[Skimmerking]

I would leave it and get some thicker foam thou.........

[Scythanith]

Originally Posted by Skimmer King

I would leave it and get some thicker foam thou.........

So what will the thicker foam (1") accomplish? Will it provide more compression than the 1/2"? Plus, I have calculated the space between the header and the tank pretty tight to fit in the return plumbing. If I take away a half inch things may get dicey.

I could switch if it's better for the tank in the long run.

Scott

[Skimmerking]

when you put water in there and Glass having no flex to a point. the Styrofoam will give that more support. so on heavier tanks thicker foam is used

[Myka]

I have no issues with the 1/2" styrofoam. Ask Dave or Denny which thickness they suggest.