Well, today I found 4 2.5" and very thin earthworms (I do not spray my lawn at all, nor do anyone else around me). I dropped the first one in and he didn't notice it till the worm moved. After it moved, the mud went crazy! It tore that thing apart! I dropped another in and then another. Until I had the last of the four in my hand. I dangled it in with my fingers and the mud actually came to my hand and ate the worm! Right from my fingers! After seeing the mess it made, I think I will go out and get a small filter today. It left some dirt in the water and I would like to have it look perfectly clean. Plus the current might make it a little bit better for the mud seeing as how I found it in a moving river.