Hello everyone. Im new to the forum and need some help with a little problem I been having with our two muts. The one is a 7 year old chihuahua and the other is a pomeranian a little bit younger. Both are males and havn't had [been neutered]. They have always got along and played around with each other. The Chihuahua always humps the pomeranian and I think they might have broke up or something because 2 days ago they started fighting. I mean like they are fighting to the death. If the chihuahua looks at Pongo(pomeranian) he will start growling and going nuts. There was blood drawn from the pomeranian yesterday and we have to keep them seperated which is hard to do. I just dont know where to start at or whats wrong with them. Any advice is appreciated. Thanks!!!