OMG! I'm over feeding them ..... I never thought that would kill them . I feel so silly now . Yes i have level 2 environment , level 2 on food and marketing . Some of my fish hatch with either red or yellow bars already , they are hungry , if i feed them they they progressively get worse , then die , but i will stop feeding as much, I'll try that if it doesn't work well we'll see what happens . thank so much ... Wings