Oh I had another idea on those first mystery plants... could they be Spiranthes cernua? Whatever they are, they are growing quite happily just submerged below the pond surface... and spread by stolons, and have apparently taken residence in 4 or 5 pots... as well as some free floating fibrous plant "muck". Here's another plant... maybe this is Helonias bullata? Or maybe just a weed? It kinda looks like Manfreda virginica. :-) http://www.badbear.com/dkramb/P3180013.JPG And another, obviously aquatic, probably "weed", but it looks cute and I wonder if someone can recognize it? http://www.badbear.com/dkramb/P3180007.JPG Please don't tell me duckweed. LOL.