Overview
Hello, here are some pictures of my pond. I have 11 3 /4inch koi in around 900ltr with a hozelock bioforce 6000 filter. Not too impressive unlike others I have seen on here but I like it 
Planning and Construction
We inherited a rather gloomy looking pond dark and murky with lots of rotting leaves and slime at the bottom, I drained, cleaned it along with the filtration system and replaced the uvc bulb and re-stocked with plants and koi.
