no actally the cave fish is a nateral hybrid in a way
if u do a bit more studying in your argument you will find that there are the blind cave fish and the fully eyed species which in the wild breed to make a hybrid also there are thousands of hybrid cichlids like the long finned oscar name a more graceful fish then that apart from the sff all those breeds of corydoras, the blue,gold rams the angel fish and the gouramis there are heaps and heaps of fish that are made of 2 or more species dont tell me that u dont like any of them.
also the food part of things like tomatos,potatos,corn,lettuse,carrots, then the meet you must be on a very very seclect diet there all hybrids and there of the top of my head. rest the peoples case