ok i got a new rex guinea pig who is 7 months younger then her new mate, i introduced them last night until about 2 hours in where they had a little fight, they've spent over night apart and i've cleaned the main cage out and sprayed it with perfume and my youngest piggie with it to as i heard thats a option, there's been a bit of arguing this morning, but nothing bad. Is this ok and has any one got any tips?