To summarize the long thread about the diet if one can't read the bad translation, this is what's written on seriously fish in shorter words:
To Alan. The diet You wrote about is bollocks It’s a strange thing that rarely anybody thinks about what actually feeding the meet of warm-blooded animals does to the (most of) fish. In case od S. sp the results of such a diet means an outstanding growth, coloration.. Everything bigger and better than in the nature. Well.. it does sound strange, doesn’t it? In the Amazon, where they can eat what they want and need they are smaller, yet they are not underfed.
Another thing, in the natural habitat discus is a rather hardy species. It does well avoiding any problems with parasites. Why is that?
The DIET of course! Becouse DISCUS IS MAINLY A HERBIVORE SPECIES!
How so?! What are You talking abou! Blasphemy! Burn him into a crisp!
There were many dissections of discus in the wild. For polish speakers I hereby present the link:
The unprocessed food was analised by Crampton, and the result is, that at the wet season 77% of the food was detrytus and plant matter, 5% were decapods, 10% Chironimidae larvae, 8% were composed of wood matter, bugs and Crustacea. In the dry season, the balance drifts towards bugs and crustacea (only 55% were composed ef the detrytus/plant matter).
Their intestines are not built for devouring the flesh of the warm-blooded animals. It’s typical for plant eaters.
What is the CORRECT FOOD ?
No fish meat was ever found in the stomach of a wild discus.
So it’s NOT RECOMMENDED to give them:
And it WRONG to give them:
-hearts of warm-blooded animals
-or any parts of warm blooded animals.
It makes them sick, destoys their organs, especially livers. The wrong diet is the cause of the discus beeing considered as a hard-to-breed fish. It’s easy! Bit you need to mind their normal diet! The one that they were constantly exposed since thousands of years.