Discus

Discus are a genus of three species of freshwater cichlid fishes native to theAmozon River basin.
These fishes are flat, and they are round,like pancakes.Discus Fish are excellent parents.While their young are still bad swimmers they help them along. For this purpose the young have special threads to attach them to the parent's body.When the female is tired of carrying them, she swims up to the male and shakes them off. The young transfer to his body at once, as though to say "Your turn now!".