Thanks ewest! The main points that concerned me were, fecundity,low water quality tolerance, and feeding habits. When I thought I had GSF in my area I read that they could tolerate very low DO levels. Later when I was looking into WM I read that they aren't as hardy as GSF. That made me wonder how else they might be different.
I don't have any one specific concern, I just didn't have much luck in general when it came to researching WM.
