* Territoriality: Hamsters are solitary animals and can be very territorial. Putting multiple hamsters together, especially if they're not from the same litter and haven't been raised together, can lead to aggression, fighting, and injury.
* Stress: Even if they seem to get along initially, living in close quarters with other hamsters can be stressful for them. This can lead to health problems, behavioral issues, and a shortened lifespan.
* Disease transmission: Hamsters can carry diseases that can be transmitted to other hamsters. Having multiple hamsters in one cage increases the risk of spreading illness.
* Resource competition: With more hamsters, competition for food, water, and space can become a problem.
Instead of housing four hamsters in one cage, consider these options:
* Separate cages: Provide each hamster with its own spacious cage with appropriate bedding, food, water, and enrichment.
* Connecting cages: If you have a multi-tiered cage or a system with connecting tunnels, you can give hamsters some shared space while maintaining their individual cages. However, it's crucial to supervise them closely and ensure they have separate areas where they can retreat if they feel threatened.
Remember, your hamsters' health and well-being should be your top priority. Providing them with individual cages will give them the best chance of living happy and healthy lives.