i read somewhere that somebody declared the flower horn as the lucky fish up until 20xx. Not sure how they arrived at that conclusion. Me nagsabi sakin sa pet owner that it has to be given to you para maging lucky.
i've seen one with a fortune symbol(chinese character) on its side...take a wild guess how it got there
fyi, flower horns are actually hybrids -- they don't exist in the wild. Dunno if you can breed them (i.e. flowerhorn + flowerhorn)
Technically it's not a cannibal if it didn't eat its own kind. But yes, i think all fish can be.
Basic rule of thumb for fish: if it fits in the mouth, then it's potentially food.