So your kids live in the back yard with the dogs! Great idea, mine all grew up but I still wish I thought of it first!! OK, just kidding, no pun intended. Your site location looks good from the photo. I gather it gets considerable shade? Keep in mind turtles like to bask but not bake. One word of caution, you will need to put some fish in the pond or you willend up being a mosquito farmer. I'd drop about 15-20 Endlers females or 20 female Least Killies in there. The turtles wont catch them as they are too small and fast.