MALE PIGGIES FIGHTING????!! HELP!!!!?

They are re-figuring out their dominance. As long as there isn't any bloodshed, you should not separate. They just need time to work things out. I bigger cage could help, though. What kind of cage do you have? I am uming that you have a pet store cage. Well, pet store cages are way to small for even one guinea pig, let alone two males. Some of their fighting will dissipate in a bigger cage. I strongly suggest a C&C cage. They are easy to build and are lots of fun! They are generally cheaper than pet store cages as well.