There are tiny tiny animals on my glass, (10g FOWLR) my tank is cycling right now with 13lb. of LR. And dont know where those things came from? I'm guessing the rocks. They walk on the glass, but are really really small.
does it look like this <a href="http://www.saltreef.com/images/galleries/pods/copepod1.jpg" target="_blank">copods</a> great scavageners and natural food for your fish