thats cool...be good if we had the climate for that!!! Although Im not advocating climate change in any way!!
Also thats a huge piece of driftwood...think it would be a bit too big for my 240 humble litres!
I guess it could be housed in the conservatory....not sure the wife would agree with it though! Ive seen Koi ponds before with half the pond indoors which is closed off through the winter. Not cheap though....
Imagine it built into the house with the basement underneath so you could hve the glass walls looking into it......best stop daydreaming!
It could be easily achieve if you have sufficient saving over here. Just take all your saving and life your life there! Labour cost and material cost are dirt cheap, you can even attempt a bigger one if you want