Is anyone worried about the hormones that are used to speed up devolopment of cattle so it is quicker thus making it cheaper to sell at butcher/supermarkets?

does anyone use organic beef heart for their discus?
if so where do they get it and how do they know it is "organic freerange"

if you have tried a free range chicken egg and a caged chicken egg there is a HUGE difference!
so does that mean discus know as well? when it comes to beef heart?
personally myself, i want the best for all my discus!
am i bieng "over the top"?