1 year old and 3 month old. What food is better?

[Arlo&Oreo]

I have a 1 year and 1 month old guinea pig who lives in the same cage as a 3 month old guinea pig. Should I feed pellets and hay made for adult guinea pigs or ones made for baby guinea pigs?

 

[Betsy]

When I had baby pigs and adult pigs I just gave them all the same diet which was for adult piggies. As long as there is plenty of hay to eat (mine had and still have meadow hay straight from the farm) they'll be OK. My 4 are all very healthy.