Is there a corner aquarium smaller than 36 gallons?

I'm looking to add a shellie setup in my house. However, the SO has limited me to where I can add a new tank because of his hatred for the sound of running water (i.e. filters, air bubblers, etc). Pretty much the only space I would have for my 4th tank is in one small corner in the dining room. A 36 gallon bowfront would fit, but it would stick out just far enough to make sitting at the dining table a bit awkward. In my search, I have not come across a corner tank smaller than that. While I can stick a 20 high in that corner and it would be fine, any longer footprint rectangle would come out too far. I'd also prefer to use that corner space since shellies like a larger footprint and dont use the top levels of the tank.

Anyone know whether they make/made aquariums around 20-30 gallons that are corner shaped? Can be bowfront or pentagon. I'd like to stay away from oct or hex aquariums since the viewing panes are so small.

Thanks. I'll look into having someone make something for me, but that will depend on the price. Otherwise I may just get a used 36 corner bow and move my dining table a few inches. I was also looking into flatback hex tanks, but they seem really narrow/thin, which might interfere with some rockwork aquascaping. I'm not sure how far from the wall it would have to stick out either. all said and done

I'm not really ready for it yet since I still want to use the 15 column that is already there as a quarantine tank for fish I'm hoping I can get soon, but you never know when a good deal on CL will come up so Im starting to look now.

Yeah, I figured if I had to get a taller tank, I'd do some rockwork just to add some decoration to the height. I'm hoping to get gold occies again, they're so much more interesting to me than multis, even if they are harder to find and more expensive. Only planning on having one male and two females and then room for fry. They are very aggressive for how small they are and in my 20 tall, I couldnt house 2 males. Miss those little fish though. Had to sell off even my breeding pair when I moved to a place with terrible well water. Now my house has much better water and I want to give them another go.

After measuring the space again, it really wont fit a tank longer than a 20L (30") and a flatback hex would just look less like it's sticking out. But they're all tall tanks, and I did want less height so that there wouldnt be a bunch of empty space up top