I have what I think is a very bad case of CoonTail invasion. Attached is an image I took a few days ago and hopefully someone can verify the vegetation. I have an aprox. 2 acre pond of which 70% + is full of this weed. The pond is very clear and I assume that this is what is promoting the growth. I did introduce Triploid Grass Carp (qty-18) a couple of years ago and they are nice and fat but not controlling the weed. Can anyone please confirm the identification of the weed and offer any suggestions for getting rid of it. Assume something to cloud the water or an aquatic herbicide. Thanks in advance for any help.

http://s1383.photobucket.com/user/GMD0911/media/pondvegetation_zps2f1dc5b9.jpg.html?sort=3&o=0