Female-to-male ratio

Question
The young'uns are three months old now, but they're all pretty plain and apparently all females.

I know that there are animal groups in which the dominant male will attack and (if he can manage it) kill the other males.

Is it likely that one of the adult male guppies killed off all male fry right as soon as they were hatched? Or is it common for a brood to have many more females than males?

Janet

Answer
Dear Janet,
Hello! How are you?
No male guppies generally do not attack male offspring. But you're right about it being true that many animal social structures will have a ruling male who will not allow other males within his group. This doesn't seem to be the case with guppies and shouldn't have been your problem with a all-female brood. Male mature guppies will fight among themselves, sometimes nipping each-others fins, but this is much more common in crowded aquariums than ones where there is plenty of room to get away from each-other.

By the time the guppies are 4 weeks old, females will begin to show typical female coloring and males will be showing some brilliance to them. So sure enough your little fry must be females. Don't worry, You'll get males soon, it's kind of a hit and miss thing. I for some reason, have a tendancy to get about an equal ratio of males and females and that should be how most guppy broods turn out.

Better luck with the next batch of fry. You'll get males soon. Be sure to not let your fish inbred because you can get some pretty terrible problems with sick and otherwise, unfit little guppies.

Feel free to write with anymore concerns...
I wish you only the very best as always!
Karen~