Heavy plankton bloom. When the sun goes down dead plankton release cytoplasm which looks like what you describe. Have seen it many times exactly as you describe. However that does not mean that the above is the only thing going on in your pond environment. Keep an eye on things. Get a visual depth reading (sechi reading)and a day time pic.





http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Main=20172&Number=259527#Post259527

Last edited by ewest; 06/28/16 09:34 AM.