I wanted a water feature in our back yard so we dug a hole, bought a liner from a billboard company, and a pump that I wrap in quilt batting to make a filter. I have 1 goldfish left from the original crew. Mostly I assume they were eaten, I never found bodies. I also found them in the pump, where I imagine they were trying to hide from predators. I was never happy with the depth, and I thought they had all died, so I drained the pond, only to find out they weren't dead, and had in fact reproduced. I rescued them, dug it deeper, refilled it, only to find it empty the next morning. Saved the survivors again, found and patched where the seam had separated and filled it again. 3 days later, we seem to be in business. Now it's deeper, I have more hiding places, and a net over the top. I live in SC, it's getting into the 90's every day. I did succumb to temptation and got 8 more. There are 14 in there now, most are less than 2" long. Any thoughts or comments would be welcome.