Merksnodige snodigheter.
Jeg fant dette her:
"Ah, but some livebearers do indeed change sex, most notably mollies. Over the past, 39 years?... I have had several females which gave birth to live fry only to become males later in life... and subsequently fertilize young females. Lake Peten's P. kykesis is especially good at it. There is usually only one male in any given tankful of fish. Once he dies, the dominant female becomes male."
(
http://www.fishforums.com/forum/livebearers/32353-molly-sex-change.html)
Det ser jo ut som det er dette som har skjedd med min Mollymamma.