Well, I suspect Vitz is just on a fishing expedition
to extract information without doing research or acquiring published papers on Discus nutritional requirements.
The proteins in beefheart beneficial to discus, the enzymes discus use to digest foods and most beneficial foods have been analyzed and documented years ago.
Vitz, if you are working in the field, and you want to advance in the field you probably should purchase scientific research papers on discus nutritional requirements.
They have been available for many many years. Digging deeper into information on the web you can find a plethora of information supporting benefits of beefheart
as a healthy food source and which foods in combination with beefheart will neutralize growth and health benefits. Studies on Discus digestive enzymes (Proteases)
have been documentated. It is quite shocking to see the results of these studies.
A lot of information is free, some you will have to pay for but I don't think you are going to get spoon fed research data when you come across as a confrontational expert.
You have come to the right place for help with discus. There are people here that have had hundreds of wild discus, thousands of domestic discus and decades of experience.
Anyone worried about feeding beefheart, don't, it has been scientifically documented to be one of the best protein source for discus.
Bill