I am not sure what you are asking. I have both indoor and outdoor ponds. I like them both. You have about the same climate I do. With the outdoor pond, I remove the tropical plants and drop the lotus to the bottom of the pond and unplug the miscellaneous fountains. The waterfall runs all year of course for oxygen. I keep koi in the big pond and goldfish and shubunkins and fantails in all my small ponds. All but the koi are brought in for the winter.
The indoor pond is nice as I can play with it all year. I have stingrays and koi and shubunkins and goldfish and fantails and plecos and rosies and guppies. There was an upside down catfish but I don't know where it went. Since it is in a manufacturing shop, I don't have any humidity issues.
Electrical is easier indoors. Digging those trenches for wiring outside is a pain.
The new turtle pond I am making is 7 foot x 4 foot and 2 foot tall. It is surrrounded by plexiglass for viewing. You can keep any fish in a pond that you keep in an aquarium. You just have to have the right conditions. Like a heater for tropicals, none needed for goldfish or koi.