So I never thought about using dye for preditor mitigation. During the winter the Bald Eagles love eating amurs and trout. Have you folks had any luck with that. My eagles are here about every other day for hours on end. The GBH is more a pest in seasons other than winter here in NE Ohio.

NE Ohio, 2 ponds @ 1.3 @ 16' & .5 ac.@ 6'. Aeration x 6 bottom diffusors, 2 HVLP fountains, Honey Hole habitat x 35 pcs, FHM, SMB, WE, RBT, YP, BG, HBG, CC (in newer WE/SMB pond only) 2nd 1/2 ac pond LMB, CC, RSF, SMB, BCP, CBG, HBG, FHM.