TB - What color is the "cloudy film"? Light green, dark green, other? Does it have any visable structures (seen w/o a lens or scope)? It could be a form of phytoplankton or blue-green algae. Your post doesn't reference a local, which would be of great help since posts from all over North America show up on this board. My visits to the board are infrequent these days, so email me if you're seeking a rapid response. Send a pic of the stuff if you have it. KD


Kelly Duffie
Cypress, TX