Dave, a friend of mine did something like this in his garage in Huber Heights. He installed a pool filter. It was impressive like this one. He good grow some really large fish. He died a few years back.
I think fish people are really missing out by not keeping some big fish in pools. Indoor pools or ponds would be easy to build compared to a glass tank. The freshwater stingrays and large catfish are most beautiful when viewed from above, like koi.
Imagine a pond in your basement with stingrays and shovelnose cats and landscaped with a jungle of orchids. Heck why put it in the basement, sounds like a great living room to me. No more low humidity. :clap: