Hi! I just got another guinea pig. We've had Daisy for about 6 months now, and last night brought home Petunia (Tunie). Daisy is bigger and has always been an "only" pig, even with her previous owners, she seems to bully Tunie alittle. But it's only been 24 hours. She bumps her with her nose or chin. Is this normal? And how long will it take them to ajust?. Tunie wants the friendship but is little shy of Daisy. Thanks for any advice.