Pentagon Tanks

[Old Guy]

I'm seriously considering getting seastar to make me a 4'x4'x30" pentagon RR. John at J&L says they make such a thing and is 300+? gals.

I see American tank manufacturers only offer up to 3'x3'(on their sites anyways).

My question is- would you trust it?

I only seen small versions of this tank design at Big Al's and thought a larger version would be perfect for a corner of my living room using all available space.

My chiro has a 60gal hex from seastar that is 17 years old with no problems but I think 300+ gals of weight on a hex joint might be problems.

Any opinions? I would prefer glass but may be force to do acrylic.

Jeff