Are you talking about mice?
If so, it is usually not recommended to house males together as it normally leads to fighting.
My past mouse Shi (female) used to squeak for no reason when her cagemate, Pei, was coming near her (also female). I think it was because Pei was harassing Shi and Shi was afraid it was going to happen again and squeaked out of fear.
Also, just because he is not bleeding does not mean he did not get attacked. One time I tried to introduce a new mouse (Tatiana) to Shi and Pei's cage. For a few days I saw no marks on Tatiana and never saw fighting, but I did hear squeaking. My mice waited until I was asleep to attack her. By the time I found out what was going on it was already pretty bad.
I woke up one morning to find Tatiana in the corner cold and with her back legs not working.
I put her on a heating pad and made a second cage for her. Unfortunatly she died soon after.
I would keep Ty away from them permantly and also keep a close watch on the other two for signs of fighting. You might want to get another cage just in case you need to separate the other two.
If so, it is usually not recommended to house males together as it normally leads to fighting.
My past mouse Shi (female) used to squeak for no reason when her cagemate, Pei, was coming near her (also female). I think it was because Pei was harassing Shi and Shi was afraid it was going to happen again and squeaked out of fear.
Also, just because he is not bleeding does not mean he did not get attacked. One time I tried to introduce a new mouse (Tatiana) to Shi and Pei's cage. For a few days I saw no marks on Tatiana and never saw fighting, but I did hear squeaking. My mice waited until I was asleep to attack her. By the time I found out what was going on it was already pretty bad.
I woke up one morning to find Tatiana in the corner cold and with her back legs not working.
I put her on a heating pad and made a second cage for her. Unfortunatly she died soon after.
I would keep Ty away from them permantly and also keep a close watch on the other two for signs of fighting. You might want to get another cage just in case you need to separate the other two.