I just got my first two pet rats on Friday afternoon

. I'm so excited to have them both!
I have a few questions though. They both seem to be sneezing a lot.
The white dumbo I have, she's not nearly sneezing as much as when I first got her.
I also got a blue standard
rat, who seems to be sneezing quite a bit. She hasn't showed any signs of gunk in her eyes or nose, but truly is sneezing A LOT. I wasn't sure whether I should wait another day to take her to the vet because I just got her?
They both aren't used to the bedding that I am using. I'm using the Care Fresh bedding. Right now, they are in a 10 gallon aquarium, because I'm waiting for their highrise cage to come which has many levels for them to play in.
Now is it normal for my blue standard to be sneezing so much? If one did in fact have a respiratory infection, could it be spread between the two?