I always said that if I had a swimming pool I'd stock it with fish. Hats off bro that is an awsome toy you got there. It looks like it couls easily collapse though, you need to show us pics of teh bracing set up.
the bracing is under the pond so i wont be gettign any pics of that. the 'gross waer' is becaus eof the 200kg or so of gravel in there. cleared up nicely since then.