Assuming some of the eggs were washed away, it looks very similar to FHM eggs to me. FHM will very often excavate a cavity for egg laying under "stuff" with flat surfaces lying on the bottom. FHM spawning can begin at 60F and your water in central IN now has the correct temperature.
BE watchful of the Elodea in your pond. It can spread fast and tends to be invasive. If it was in my pond I would be very unhappy.
Last edited by Bill Cody; 05/04/12 09:33 AM.
