Indoor koi pond

None of these koi ponds no longer exist. I have dismantled them and moved all of my koi out to my new koi-house.
Indoor Pond #1
This pond is located in my basement. This pond is 5x10x30" deep, and holds roughly 1200 gallons. It has a bottom drain which is connected to a settling chamber and filter (in the ajacent room). The pond is circulated with a 3600gph Sequence 750 pump.
Indoor Pond #2
This pond is located in my heated garage This pond is 6x6x24" deep, and holds roughly 500 gallons. It has a bottom drain which is connected to a settling chamber and filter. The pond is circulated with a 1800gph Mag Drive pump. Construction Photos
Indoor Pond #3
This pond is also located in my heated garage This pond is 4x8x32" deep, and holds roughly 500 gallons. There is a submersible pump that pumps water to a trickle tower. Construction Photos