My new cat fights my old cat, and now my old cat is spraying. Help!

The make feliway sprays and diffusers you can plug and spray on things to help that she will not be able to get to. If he is smart enough to walk away and not fight then I think they will be fine to figure it out on their own.

This sounds like a very frustrating issue! It is difficult to determine why Chino and her friend are suddenly having so many issues. At this point, the best thing you can do is get both cats spayed to remove hormonal influences that may be contributing to their aggression with one another. You can also use calming pheromone collars or diffusers (Feliway is one brand) for both cats. If the aggression continues after those options, it may be worth consulting a veterinary behaviorist to evaluate their behavior in your home. Keep both cats separated unless you are directly supervising them and avoid putting any part of your body between them if they fight. If they do begin to fight, dump water on them to distract from the situation and separate cats immediately. I hope that all goes well!

This can happen from stress, and also because Onyx isn't neutered, he may be doing this to show the home is his territory. I'd definitely have him neutered, and use a Feliway diffuser in the home to see if that helps settle him. Cleaning up the marking areas is tough, but I recommend using Skout's Honor cleaning products to get rid of the smell. I've found them to be effective. You can get them online or at a pet store. I hope this helps!

He may be experiencing some stress and anxiety from having another cat in the house. You could try Feliway Spray or a diffuser and see if that helps. You could also try Solliquin and see if that helps. If he is still having issues than your vet could prescribe an anti-anxiety medication, like Prozac. http://www.feliway.com/us/#redirected http://www.solliquin.com/

You may need to make some adjustments so you can help keep your home a low stress and comfortable place for your cats and get Piper and your other cat to get along. Cats need at least one litterbox per cat plus one extra to help reduce stress associated with the litterbox. They should be placed in separate rooms, away from the food and water bowls, must be scooped at least daily (preferably multiple times a day)and washed out at least weekly with a mild soap, followed by thorough rinsing. Cats need a lot of space to explore, but keeping them indoors is much safer than letting them outside, due to the risk of injury from cars, wildlife, other animals, etc. The key is providing space (particularly vertical space for climbing, such as cat trees, ledges, and the like) inside the home. Visit veterinarypartner.com and healthcareforpets.com for tips on stress reduction. The following link has information on introducing a cat to your home: https://indoorpet.osu.edu/cats/felinelifestressors/new-pets Also look into Feliway, a synthetic pheromone that is available in a diffuser and spray form that promotes calm feelings in cats http://www.feliway.com , and feliway friends, which is a pheromone that can help cats get along with each other better https://www.feliway.com/ca_en/Products/FELIWAY-FRIENDS-Diffuser I highly recommend you have Piper spayed, as sometimes the hormones associated with not being spayed can worsen behavioural issues. Spaying also stops the heat cycle, eliminates the risk and cost of unwanted breeding, and can reduce the risk of uterine and ovarian cancer, as well as reduce the risk of potentially fatal uterine infections and breast cancer. Good luck, and I hope your kitties start to be friends soon!

So sorry that you are having this problem. I know it can be very frustrating. The first thing you could do is have him examined by a vet to make sure he doesn't have a urinary tract infection or other medical reason causing him to urinate outside the box. If a medical reason has been ruled out and it is strictly a behavioral issue then you could try a Feliway diffuser or spray and/or Solliquin chews and see if that helps. You could also take to your vet about trying an anti-anxiety medication, like Prozac. Hope the issue gets resolved quickly!

They may always be enemies but there are a few things you can try to help calm them. I would start by putting some feliway diffusers throughout the house. They have a multicat version now. Feliway is a feline pheromone which is helpful to calm cats. It doesn't work on all. You could also consider putting some essential oils throughout the house. Be sure to get ones that are safe for cats. Visit oilyvet.com for more information. Also, make sure you have at least 3 litterboxes throughout the house, if possible, to prevent competition. If all this fails, you could talk to your vet about putting one (the instigator) or both on an antianxiety medicine to help calm them. I hope this helps!