This is a discussion on Help identify cross bread within the Livebearers forums, part of the Freshwater and Tropical Fish category; -->
I have silver mollies, an orange platy and two guppies in my tank. One of them keeps having babies. They look like the silver ...
I have silver mollies, an orange platy and two guppies in my tank. One of them keeps having babies. They look like the silver mollies but they are brownish in color. I thought it was the mollies and platy breeding but everything I read says that's impossible. Can it be the mollies and one of the guppies?
I would attach pictures but I am using my iPhone and don't see an option to upload pics.
IME all livebearers can cross breed. But if there are a number of each kind it is unlikely. On the other hand I often get mixed breeds between mollies and platies.
It might not be a cross breed of your livebearers but a cross before you bought them. They do begin to spawn quite young. So if they were put together with other types of mollies, they would have mixed spawned. And they may carry the sperm for a few months. I don't exactly know how it works, but I've noticed that they will keep giving birth for a few months even without a male.