My rats usually don't fight, and I honestly don't know what happened as I was asleep, but I woke up to a loud scuttering noise. One of my rats was hiding while the other two were facing each other, they seemed to be very tense. They were all making a noise that sounded like bruxing, but it obviously wasn't. Once I came to my senses I quickly separated them and started giving them treats to distract them from the other. I noticed one of them, the one hiding, was walking weird, kind of like a rushed wobble. And he refuses to go to the bottom floor of their cage where his brothers are. I've been monitoring them but this all happened 5 minutes ago. All three of them are still very tense but after feeding they seem fine. One was asleep for a while, the other was in his tube, and another is on the top level of their cage. I'm glad they're separated but I'm worried that this has caused unnecessary tension, as they usually are really snuggly and close. Does anyone have any suggestions on what I can do for them? I don't want to possibly send one back because they're fighting, and I'm hoping it's just a one time thing but I want to prevent it from happening again.