I'm still working on fish that grow about 30 to 1.5 metres, but they're still babies.
Clown Knifefish, pangasius, black sharks, oscars, tinfoil barbs, bichirs and such.
But seriously man, I am going to what you did. If anything, that is perfection. My biggest tank, which is still in the thinking stages, is only going to be 3 metres long! About 1800 litres. Nothing compared to your dream creation.
Seriously, why not build your own public aquarium? You've obviously got something for big tanks, which clearly inspire...
But thank you. I've got something to work to. Busy watching your videos now and taking notes, sight-seeing etc.