Swimming with the koi fish in the recreation pond

We have about 30 fish ranging from 2" to 14". Most of them are Koi. Some Goldfish and Golden Orfes.

Pond build time lapse: https://youtu.be/l2O9_BqNQFg
Took us about 3 1/2 weeks to build it and it cost approximately $2K in materials so it's very doable on a small budget.

Swim Pond 2.0 (also called an organic pool):
- 6000 gallons
- overall size: ~ 20 feet x 20 feet
- shallow end depth (old koi fish pond): 18 inches
- swimming pond depth (new pond extension): 4.5 feet

Took us about 3 1/2 weeks to build it and it cost approximately $2K in materials so it's very doable on a small budget.

Parts list:
Waterfall attached to the deck: https://www.amazon.com/dp/B000P6B5L2/ref=cm_sw_r_cp_apa_fabt1_WkOSFbQTGR7KK?_encoding=UTF8&psc=1

Deck waterfall pump: https://www.amazon.com/dp/B07THX1DZ1/ref=cm_sw_r_cp_apa_fabt1_emOSFbEWVE2EM?_encoding=UTF8&psc=1

Canister filters (2) (on the deck waterfall and the stone waterfall)
https://www.amazon.com/dp/B07YKCHPFX/ref=cm_sw_r_cp_apa_fabt1_jnOSFbZ9EGDVJ?_encoding=UTF8&psc=1

Pumps (2) feeding the stone waterfall and the bowl waterfall:
https://www.amazon.com/dp/B0049XENYS/ref=cm_sw_r_cp_apa_fabt1_xrOSFbA10K494?_encoding=UTF8&psc=1

Skimmers (2)
https://www.amazon.com/dp/B002RBCT0O/ref=cm_sw_r_cp_apa_fabt1_9rOSFbKR0PP2Q?_encoding=UTF8&psc=1

Liner:
https://www.amazon.com/gp/product/B005BY5ZC8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Liner seam tapes (to attach old pond liner to new) and liner primer:
https://www.amazon.com/gp/product/B00069UDKW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B013PCI5R4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B00CEHP9AS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Tubing:
https://www.amazon.com/gp/product/B0765C8K6F/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Видео Swimming with the koi fish in the recreation pond канала RedScapes