This is mainly my tank for holding aquatic plants before they go in the other tanks, but it's slowly becoming a little project of its own. First, here is a full album of photos, which I will update periodically: https://goo.gl/photos/kbqFCVPEknvw7FVL6
Now, a few shots (click thumbnails for full-sized images):
I'll be adding some snail and mussel shells as a top level substrate soon, and the plants will probably cycle through a bit, but this is where I will document such changes.
Also, as shown in the photos, the only filtration is the air stone bubbles pulling water up over the clay pebbles in that mesh bag. Water changes are frequent. The tank is on a platform on a radiator for the winter, and will move to a sunny window whenever we turn off the heat.
Plants and microfauna (scuds, snails, bivalve, so far) are from the Potomac, between DC and Great Falls, and mostly have not been definitively identified (feel free to make suggestions). I believe the grassy plant is Heteranthera dubia
, and I have some tiny ramshorns that I think are Gyraulus parvus