Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Naiad Control with Grass Carp and dye

I have a 2 acre pond that has a pretty bad naiad problem that we cant seem to get under control with chemicals. I am using a commercial pond management company and they are doing a great job at service but the naiad is stubborn. The water has good color to it but we are thinking of putting black dye and some grass carp in the hopes of better control. I had 8 GC in there once before I renovated to help with FA. I don't think that worked well. Do you think they will eat the Naiad better than they did the FA? Looking for opinions.