I just had to get rid of my cat and I gave him to a friend. He is a 9 month old, neutered male Tiger cat. And she already has an 8 month old, non- fixed female Tiger cat. The female, named Under, is just now starting to hiss and growl at everyone and everything. Including the new male cat named Krauser. Krauser is just wondering around the house like he owns the place. He seems comfortable there. However he does keep his distance from her. Under just sits there staring at him and if he gets to close she growls and hisses at him, the same with us people, she will also hiss at us. Under will go into heat about every two weeks. My question is. What are the chances they will get along, and that she will leave him alone. And when she goes into heat will it only get worse or better? Will she eventually like him or tolerate him? Or do I need to try to find another home for him? Which I don't think I can because I can't find anyone. I might have to take him to the Pound if they won't get along. Thank you in advance.