Grass Fed Beef and Fishy Taste

We had three different steaks on Saturday, two grassfed and one grainfed. The massive thick grassfed steak had a fishy taste most noticeable in the fat. Strong, like the dried fish in Gabon. The meat itself was fine, it seemed, but the grainfed steak was milder (and I suppose more familiar). It was a disconcerting experience. Turns out, though, that grassfed beef has higher Omega-3 levels, and this contributes to the fishiness (as it does in wild fish).