I had the same problem, my female angel would devour the eggs or fry if the light was turned off. Now when they spawn I leave the light on 24/hrs a day (to the despair of my hygrophilia and the delight of the green algae) until the fry are free swimming for a day or two. Then I remove the fry and resume normal lighting. Stephen Morrison in Batavia,IL Anglefish - free to a good home(local)