We had the same experience as Mike M... 4 Koi ponds, 2 ea. in the same place but expanded to present state... In addition have 11 other water features from, 5, 2' square Tsukubais (Japanese basins with bamboo water spouts) at all doors and garden entrances (need all the blessings we can get), 1, 8' diameter lily pond and 4, 2x4 lily ponds in front court yard...plus 1 150 gallon guppy pond in the backyard. Will be building another 6' square lily pond on side courtyard, if I can sneak it by the wife, have to figure easy way to build it while she's at work...
Courtyards: Sounds grand huh...actually all ponds are on a very small 6k sq. ft. lot in a blue collar neighborhood... With the last lily pond have run out of space to build...
Aloha! Mike