Two days ago one of the black moscow females gave birth to a small number of fry. She was big during pregnancy. This could mean a lot of fry and being small at birth or less fry and being large at birth. Last thing happened. No adult is chasing them. But even if they were smaller, no adult would urge to chase those fry. For former batches of newborns were also left alone by them. This is another example of adult guppies that won't chase nor eat their fry.