Hi! First of all, congrats on getting your piggies soon! As with pigs of any age, they need hay, and lots of it! Depending on how old they are, they will need Alfalfa or Timothy hay, though other members of the forum can help you with that as I don’t really know. I would also recommend baby guinea pig pellets, a tablespoon a day for each pig is plenty. Oxbow Young Guinea Pig food is a great brand, and when my boars were babies they loved them! They also need veggies, a cup of veg a day is plenty for piggies. Healthy treats and forage are optional, though they do help enrich their diet a lot and piggies seem to love them! Goodluck!Hello. I am due to collect two guinea pigs in a couple of weeks as this is when they will be able to leave. Do i need to start them on different food as they are still babies?