All still water here is frozen over, solid. The Mississippi might have some open spots I could get to, but it's like a mud spa, even in the best of times. It's why I asked about clean water. I suspect that anything that needs sunlight to live can not live in the Mississippi, as light would not go into the water very far. Right now, the only clean water is running in a creek just behind where I live. I have never sampled that yet, as it's hard to get down to it. Lakes and ponds are going to have to wait till spring.
My aquarium was doing real good till last week. Then I bought some water plants and added them. The aquarium was nice and foggy with microbes, then I put the plants in. I guess the extra oxygen has killed some of the microbes, cause the water has cleared up a lot. I do still have lots of little, just barely see able pods of some sort. Not shrimp, some tiny little white things that I haven't succeeded in catching yet. And lots of stuff growing on the plant leaves. As soon as I have some time, I'll find plenty to look at.