when to water down juice?

Erica
So we live with my in laws at the moment, we've moved from Florida to Minnesota and are staying with them till we get a place. Well they keep our son who just turned 1 last week while we work as well. So I got up this morning and they have a bottle out of orange juice for him.., out pediatrician said before at his 9 month appointment he's not really ready for juice till 1, and then it has to be watered down... this doesn't look watered down... should I say something?