Ok, so as some of you might know, one of my guppy died of very mysterious reason. She just stopped eating and starved to death. She have no apparent injury or mark or anything. Now her daughter (she is now 3 month old) have the exact same problem. My water quality is perfect, but she just stopped eating. None of the other guppies are behaving any differently. I tried all sort of food but she will just put it in her mouth and than spit it out. I will post a picture as soon as I can. Any help? I don't want her to die too! Is it a genetic disease?