Can anyone tell me the approx age of my baby Guppy fish?

JessicaBillups

New member
Ok so i came home the other evening after a weekend away to find 3 baby guppy fish in my tank.
They look too big to be newborns as my friends newborn guppies were at least half the size of these but im sure i would have noticed them if they had been born before the weekend as before i went away i moved a lot of stuff around in my tank...
They are approx 7mm long so i was wondering if anyone had any idea to their age?
 
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