That is a clip from "Jewels of the Rift" with an overdubbed narration - anyone that hasn't should check the documentary out. I am not a huge cichlid fan, but it is definitely an interesting video. You can find the original on YouTube also.
Theres a bird that would kick out other birds eggs out of the nest than lay their own, and the mother bird tends to the hatched birdies as her own.. Don't remember the name of the bird though...