Thanks Paul for a long term well thought out hobbyists point of view. Field testing and "clinical" type experiences are just as important as scientific research.
I was under the impression that if it's not of marine origin, then it wasn't the best food source. This makes since to me, but I was wondering what your thoughts on this were.
BTW, have you seen this thread?
Feeding Marine Fish and Marine Fish Nutrition there are some conflicting points to your post. Can you respond to them?