I would think you would want a stand support under the bottom pane seam. Then the support would hold the weight, no issues :D

If you are talking about me:wink: lol I am still debating on the final length, i would love to do 22 feet but it wouldn't leave me with much room to work around the tank. As to the question stated by lastlight definitely doable as i plan on using 5 pieces for my bottom plate with bracing.

AquaGiant in Edmonton has two 4' x 4' tanks with split bottoms. Once in place I don't think they will ever be able to move them

With the right braces, it works well. Or you just do a double bottom with the top pieces split in three. This way your seams don't over lap and you can temper the top panels. That would make it very strong.

Well Jay you already know you're hypothetically/dream-hired. Now I just gotta pay some debt off and sell my kids =)

Thats great, When you are ready to go over your build just let me know. The design is half the fun.

Oh see now this is different! You were asking if it is doable. I already know that it is :p

What I want to know is the actual long term survivability of such a tank and personal experiences with such a tank. Totally different topic! Sort of.

I stand absolutely corrected. As you were sir. Remember as a rule of thumb these sorts of tanks are safest when under 400g =)

Do you have anything to back up that claim? So hypothetically speaking one shouldn't attempt a, oh say, 504g this way?