My guppies fry are not really colourful and their tail are not fancy, but their parents are from pretty fancy guppy. The females are colourless with only a black spot on their tail. They are now around 1cm+. Anyone who can help?

i'd say mine got color around 2 months.My guppies fry are not really colourful and their tail are not fancy, but their parents are from pretty fancy guppy. The females are colourless with only a black spot on their tail. They are now around 1cm+. Anyone who can help?
