Hey Bill,
Thanks for the numbers. Wow, I did not know that. Last year, our pond was overrun by aquatic snails. I was hoping they wouldn't come back, but now I hope they do! We also get plenty of algae in there. It is still water (no streams), so you can imagine algae likes it. Actually, I think one of my biggest problems is going to be fighting the algae, because the algae can get so thick in there I have no doubt the fish would suffocate. But that only happens when it's low and the water is super warm. The weather is starting to get cooler, so I shouldn't have to worry too much about algae at this point.