Cats may be independent by nature, but when you have more than one, behavior problems towards other cats can quickly turn your home into a battlefield. Hissing, swatting, chasing, blocking access to food or litter boxes, and even full-on fights are common signs of inter-cat tension. Fortunately, there are proven ways to reduce conflict, restore peace, and help your cats live together more harmoniously.
Quick Picks: Best Products for Cats Fighting or Showing Aggression
- Best Overall: Feliway Optimum Multi-Cat Diffuser Kit ($329) – Scientifically proven to reduce inter-cat aggression and tension.
- Best Budget: Catit Jumbo Hooded Litter Pan ($329) – Prevents litter box guarding by giving cats private, separate spaces.
- Best Premium: PetFusion Ultimate Cat Tower ($499) – Provides vertical territory to reduce fights over space.
Buyer’s Guide: Why Cats Fight or Show Aggression Towards Each Other
When cats lash out at each other, it’s usually not “bad behavior”—it’s a response to stress, fear, or competition. Here are the main causes:
- Territorial Behavior: Cats naturally defend resources like food, space, and litter boxes.
- Improper Introductions: Cats introduced too quickly may never build trust.
- Resource Guarding: Fighting over food bowls, toys, or litter boxes is very common.
- Redirected Aggression: Cats may attack each other after being startled by something else, like a loud noise or outdoor cat.
- Stress or Anxiety: Moving homes, adding new pets, or changes in routine often trigger aggression.
- Medical Issues: Pain or illness can make cats more irritable and aggressive.
Detailed Reviews: Best Products for Reducing Inter-Cat Aggression
1. Feliway Optimum Multi-Cat Diffuser Kit ($329)
Who it’s for: Multi-cat households struggling with fighting, hissing, or spraying.
- Releases calming pheromones into the environment.
- Clinically proven to reduce conflict between cats.
- Drug-free and safe for all cats.
Pros:
- Easy to use plug-in diffuser.
- Effective for both aggression and stress spraying.
- Helps cats coexist more peacefully.
Cons:
- Requires monthly refills.
- Not equally effective for every cat.
Final Verdict: The #1 vet-recommended solution for multi-cat tension. Buy now.
2. Catit Jumbo Hooded Litter Pan ($329)
Who it’s for: Homes where cats guard litter boxes and block others from using them.
- Large, private design reduces conflict.
- Hooded cover adds privacy for anxious cats.
- Carbon filter minimizes odor and stress triggers.
Pros:
- Affordable and spacious.
- Prevents litter tracking and mess.
- Encourages each cat to use their own box.
Cons:
- Some cats dislike enclosed boxes.
- Still requires daily scooping.
Final Verdict: A simple fix for litter box guarding and disputes. Check price.
3. PetFusion Ultimate Cat Tower ($499)
Who it’s for: Cats competing for space or fighting over resting areas.
- Multi-level climbing and lounging zones.
- Durable, eco-friendly design built for stability.
- Creates vertical territory to reduce fights.
Pros:
- Reduces territorial disputes.
- Stylish and long-lasting.
- Great for multi-cat households.
Cons:
- Requires floor space.
- Higher cost than basic cat trees.
Final Verdict: A must-have for homes with multiple cats. See details.
4. Whisker Feeder-Robot ($399)
Who it’s for: Cats fighting over food or mealtimes.
- Schedules meals automatically via app.
- Dispenses precise portions to reduce competition.
- Prevents begging and food-related aggression.
Pros:
- Reduces food-related fights.
- Perfect for structured feeding routines.
- Great for multi-cat homes.
Cons:
- Premium cost vs. standard feeders.
- Requires WiFi setup.
Final Verdict: The best solution for food aggression. Order now.
5. One Fast Cat Exercise Wheel ($499)
Who it’s for: High-energy cats redirecting aggression toward housemates.
- Indoor running wheel for safe exercise.
- Burns off excess energy that often triggers fights.
- Durable and easy to set up.
Pros:
- Prevents boredom-driven aggression.
- Ideal for active breeds like Bengals or Siamese.
- Improves overall mood and behavior.
Cons:
- Requires training to use.
- Needs space in the home.
Final Verdict: Great for reducing stress-driven aggression. Buy here.
6. ThunderShirt Anxiety Vest for Cats ($349)
Who it’s for: Cats that become aggressive when anxious or stressed.
- Applies gentle, constant pressure for calming.
- Helps with stressful situations like moves or new pets.
- Washable and reusable.
Pros:
- Drug-free calming option.
- Affordable solution for situational aggression.
- Easy to put on once cats adjust.
Cons:
- Not tolerated by every cat.
- Best for short-term use, not daily wear.
Final Verdict: A good choice for fear-driven aggression. Check availability.
Comparison Table
| Product | Key Features | Best For | Price |
|---|---|---|---|
| Feliway Diffuser | Pheromone calming aid | General inter-cat aggression | $329 |
| Catit Jumbo Litter Pan | Large hooded litter box | Litter box guarding | $329 |
| PetFusion Cat Tower | Multi-level climbing | Territorial disputes | $499 |
| Whisker Feeder-Robot | Automated feeding | Food aggression | $399 |
| One Fast Cat Wheel | Exercise outlet | Boredom aggression | $499 |
| ThunderShirt Vest | Calming pressure | Fear-based aggression | $349 |
FAQ Section
1. Why is my cat aggressive towards my other cat?
Most aggression comes from territorial instincts, poor introductions, resource competition, or stress. Medical issues can also contribute.
2. How do I stop cats from fighting?
Give each cat their own litter box, food bowl, and resting spot. Use pheromone diffusers and gradual reintroductions if fights continue.
3. Can cats learn to get along?
Yes. With time, patience, and proper resources, many cats adjust and tolerate or even bond with each other.
4. Should I separate my cats if they fight?
Yes. Separate immediately, then reintroduce slowly using scent swapping and controlled encounters.
5. Do calming aids really work for cat aggression?
Yes. Products like Feliway often reduce tension, though they work best alongside environmental management.
Conclusion
Cat behavior problems towards other cats are common but rarely unsolvable. By addressing stress, providing separate resources, and using proven tools like pheromone diffusers, cat towers, and automated feeders, you can restore peace in your multi-cat household. The right mix of structure and enrichment makes all the difference.
Take action today—choose the right products and bring harmony back to your home.