I had built the indoor pond to house some of the koi as my big pond is WAY overstocked. Guess it is time to sell some. (dang it, they are 16 years old - got them as 2 inch babies) I guess I could build another pond in the basement for the turtles. (I take unwanted turtles in as well as birds and guinea pigs) Or maybe I could figure out a way to make the neighbor want to sell his house, then I could buy it and put in a pool and another pond. Hmmm.... Hey then I would have more room for another sulcatta or 2!!
Thanks for all the tips. I have the pond up to heat and the koi seem to be doing fine. I will wait another week though just to be sure.