I just got back from talking to my fish guy(he only lives 2 miles from me)and he is concerned about using GSH because they are predatory too. He suggested stocking FHM when I thought I needed them. I asked him if he thought I had to many LMB and he said no, a good rule of thumb for him in our climate is 5-1. But he did say if I wanted HSB I should remove some LMB. He's been doing this for 42 years and ships all over central US. So now I'm really confused! I've known him all my life so I don't think he is just trying to sell me fish.