I forgot to mention that I have that yellow flag iris, too. I'm feeling a little better about the overall situation now. My neighbor who said he could take fish for his client has kind of gone radio silent on that issue for the last few weeks, which is why I can't really take it for granted that it will happen, until it does.
Last winter, my pond's first, was a very different situation than what I'm facing now. My pond was technically done, but not really, and there were few plants in it. That was kind of a scary winter, but with some mid-winter construction projects on it (thank you very warm winter!), I got through it. This winter now feels like my true first winter. But I wonder if I'll think something like the same next winter, too. Ponds are real learning opportunities. There is so much to figure out and keep straight, and the consequences are very real: if you screw up, you could end up killing your pets and causing a big problem in your own yard. But if it all goes well, you have the best part of your whole property to enjoy. It's a fun kind of education.