When upgrading Pond #2 to Pond #3, the biggest issue to resolve is where the fish could be kept for a few weeks. The solution? “Tub Med” — a soaking tub in the master bath.

Building
The three major enhancements were 1) to have the plant shelves slope slightly backwards so plants wouldn’t fall forward into pond; 2) dig a dedicated lotus plant shelf; 3) put in a very shallow shelf that we could line with rocks to make the edge a bit more “transparent”.
Pictures
Construction went smoothly. Several years later, everything’s still running perfectly. The results? Looking at the pictures and videos, I’d say I’ve earned bragging rights. 🙂
Statistics:
Average Depth: 27 inches.
Amount of water to:
* Shelf B: 192 gallons
* Shelf C: 362 gallons
* Shelf D: 523 gallons
* Top: 647 gallons
Time to fill to:
* Shelf B: 26 minutes
* Shelf C: 50 minutes
* Shelf D: 71 minutes
* Top: 96 minutes
Depth: 18.75 inches.
Average Depth: 13.50 inches.
Amount of water to:
* Shelf C: 170 gallons
* Shelf D: 231 gallons
* Top: 355 gallons
Time to fill to:
* Shelf C: 24 minutes
* Shelf D: 45 minutes
* Top: 70 minutes
Average Depth: 7.75 inches.
Amount of water to:
* Shelf D: 161 gallons
* Top: 285 gallons
Time to fill to:
* Shelf D: 21 minutes
* Top: 46 minutes
Average Depth: 2.25 inches.
Amount of water to:
* Top: 124 gallons
Time to fill to:
* Top: 25 minutes