Hello. Thank you for your stopping by. Yes – you can see
koi pond in wintergarden behind the root – here is a
video of this KOI pond if you want to see it.
I have never vacuumed the sand – it would be almost impossible. Everything is done through filtration system. Nobody also dives there – it would scary the fish and also it would be dangerous due to stingrays. I only clean glass with magnet which I ordered directly from the USA – there wasn`t magnet for such a thick glass in my country. Concrete is insulated with 10 cm styrofoam from the outside - If I switch off my heat pump, water temperature drops only 1
0C per 24 hours. There are no earthquakes in my country at all but If I could I would move to California immediately because of the nice weather.
Thanks a lot for your nice and kind words I appreciate it highly.