My DIY Indoor 1500 Gallon Saltwater Tank

  • We are currently upgrading MFK. thanks! -neo
Is a 1/2" sheet of polycarbonate going to be strong enough for 48" tall??

No. I did a 96" long 48" tall plywood tank with 3/4" cell cast once. It worked, but was not enough. I tore it down after a few months because the bowing was making me real nervous and it was starting to cause a small seam leak at the bottom. I would not even think about using less than 1.5" cell cast for a 96" long 48" tall plywood tank. Also this was fresh water. The density of salt water makes the depth of the tank even more of an issue.
 
Update: I am going to use 1.5" acrylic for the viewing window, and I will post pics of the current room later tonight. Thanks.

-Joe
 
jjaneski94;3985621; said:
Update: I am going to use 1.5" acrylic for the viewing window, and I will post pics of the current room later tonight. Thanks.

-Joe

I urge you to consider going thicker with your acrylic. I ran the numbers when I originally posted and came up with 2" at a minimum.
 
I urge you to consider going thicker with your acrylic. I ran the numbers when I originally posted and came up with 2" at a minimum.

Good advice on the 2". I was not saying 1.5 would be the way to go. Just that I would not even start to think about less. If I was doing the same progect again I would do all my research and calculations and consider my past experiance then make a decision on my comfort leval with the safety factor I am willing to except. There was very little information on this kind of thing available when I made that tank and I mostly made it up as I went. Please make sure you understand the effect of water pressure at 48". Making it just 12" shorter makes a big difference in bottom pressure and the acrylic thickens needed.
 
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