I have used lots of different ingredients in my mix in the past
but my last one consisted of -
heart meat,liver,prawns,mussels,spinach,calcium carbonate,pro growth,multi vitamins,paprika
'flake food and discus bits.
Slightly cook the liver and boil the spinach,some also cook there heart meat & mussels but I don't.
I just use any flake that I have on hand and just chuck it in the mix no real measurements involved here.
ox heart is the best heart meat to get as there is more meat and less fat which you need to cut out
I have used sheep hearts as well but they are a pain, smaller and more fat and waste to cut out,but ok in a pinch
while they are great for growing discus,heart meat recipes foul the water quick
and you will need to compensate this with regular water changes.