Cube tank from two 40b's

[Truefab21]

Hi, I'm new here but a long time lurker, this question has been killing me for a while, and I can't find a single person who has done it or tried to.. but, Has anyone done this with success or even failure? I want to do a plywood bottom tank, and use two breeder tanks front and back glass to create a 36x36x18" tank. Is this possible? I know it comes out to a theoretical 101gallon tank but, I expect it to be more like 85 gallons between water height loss.. I would build it with a rim and an "x" brace for support.
If I can get reasonable evidence that it is, in fact, possible I will try it. 40b tanks pop up used really cheap all the time on Craigslist here in Vegas.

 

[millerkid519]

What is the thickness of glass?

 

[Thekid]

Why not just go with the 93 cube? Another option is to order the glass and make the tank yourself. I'd be worried about such a short tank being able to stang up to the pressure without bowing a lot.

 

[Truefab21]

The glass measures out to 1/4inch, thickness and is not tempered. The reason I ask this is because of three reasons.

First, it would cost me roughly 80$ to build this tank (not including the stand) and I could drill it for overflows and such.

Second, I keep 3 red belly pacu, which means I'll need a way bigger tank within a year Max.

So in closing, if I build a 36" cube it will be temporary or I will keep my clown loaches and silver dollars in it down the road.

I don't want to pay 500$ for a 93cube but, they are good looking tanks!

 

[Truefab21]

My pacu are currently about 5" long and in a 40 breeder tank and seem happy and healthy now, I'm moving in 8months and when my big tank gets built or bought, I fear it won't be able to make it through the hall way in my current house:/