Okay, this is a really funny story yet very interesting.
Over my period of keeping mollies I have encountered many issues that were easily solved but recently I have been arguing with myself on mollies changing gender.
Initially I purchased a few mollies knowing clearly what gender each one was. I later noticed the bigger molly (initially a female) change into a male!!!
I was doing my usual feeding a few months back when I noticed my biggest female with male parts...not only did he now have a gonopodium but still had it's female parts too...it later became a fully finned male in a week.
Now...recently I purchased 3 mollies making sure all where pregnant....all of them genuine females. One of them jumped out of the tank and died so this leaves two. One of them has a blue shimmer and the other is a solid yellow with streaks of black.
Both these mollies gave birth when placed in my outdoor pond and brought indoors to complete their drops together. I just noticed that the molly with the shimmer has both reproductive organs
I don't know if anyone else has an explanation for this or if it's the food I'm feeding them
Did anyone else notice this?