is this true ?

[Angel03]

I have been told by somone that if you have to many male guppies and 1 female ,the female will turn male or vise verser , is this true is somone pulling my leg ?

Angel x

 

[andyt_uk]

"Another falsehood laid on the guppy is that they are capable of changing sex, it is often said that if all the male guppies are removed from a mixed sex aquarium that one of the females will turn into a male. When you look at the reality of this situation, that these sex changing fish's are actually immature males that are now allowed to mature because the dominant males have been removed, you realise that the sex change theory is just nonsense. Yes, I know that some old females can develop a gonopodium, however, they do not have the necessary "fishing tackle" with which they can produce sperm"

taken from http/www.freshwatertropicalfishkeeping.c.../guppy_fish.htm

cant vouch for its integrity - but it does make sense ;-)

 

[guppymonkey]

I have kept a lot of guppies and never had a female turn male (except when it was really a late maturing male). But if there is a tank full of males and one female she will be harassed to death by the horny male guppies.