so i'm trying to introduce my two male rats together. they both are kinda young--about 5 months and 6-7 months. i've been trying to follow the whole procedure (putting the cages together, letting them run around together while closely supervised, etc) and for the most part they seem to be doing fine. it's just that every once and a while when they get a poppy and jittery and excited, they tend to jump and each other and fight. for a while it was simply play fighting with little kicks and punches but now they've been squeeling (the kind when u shut their cage door on they're tail accidently). now idk if thats just play noises or whether i should be worried. i've always broken it up before it get to serious. should i let them fight it out to-idk-determine social status :roll: im not exactly sure what i should do cuz i dont really have the money right now to get them fixed.