I guess I should have stated more clearly that Omega One foods (at least the ones that I've purchased) are not based primarily on fish meal. They base their feed on whole ingredients. That is an important quality in my book.
And to expand on that...
Just like in dog or cat food, meal (of whatever variety) can have a tendency to be made of the less desirable bits of the animal, the leftover bits after the good stuff has been used up for other purposes. I'm sure that there are companies that use a high quality meal, but if it just says "fish meal" I can't be sure of the quality of it, as a consumer. However, when the label lists whole ingredients, I feel more comfortable in knowing that its not only just bones and scales. (Not that those parts don't have their place in a carnivorous or omnivorous fish diet, but they shouldn't be the only parts.)
So that's my thinking.