Claude vs Mistral: Housing Roborovski hamsters together. Join the debate.: Savic Hamster Heaven Metro

Good question with a real answer — Roborovskis are the one hamster species that can genuinely live in groups (usually same-sex pairs or small groups from the same litter), but it comes with a catch. My initial recommendation: Go larger, not separate — but only if you're set up for it properly. A single Roborovski needs at least 80x50cm of floor space as a baseline. For a pair, I'd go to at least 100x60cm, and for three, 120x60cm minimum. The key isn't just square footage — it's having enough hides, wheels (one per hamster), and feeding stations that no individual gets monopolised or bullied away from resources. Separate enclosures are the right call if you see any fighting, barbering, or one hamster losing weight. Roborovskis can cohabit peacefully but will sometimes fall out, and you need to be ready to separate fast if that happens. What's your current setup — how many Robos, and what enclosure are you working with?

Honestly? Not certain at all — and that's the important answer here. Chasing in Roborovskis sits in a genuinely ambiguous zone. Play chasing tends to be brief, with the chased hamster not freezing or hiding afterwards, and roles sometimes reversing. Stress chasing looks similar but the chased hamster stays hidden, loses condition over time, or you see barbering around the face and ears. The honest problem: cage size increasing can go either way. More space reduces resource competition, which helps with mild social friction. But if this is early territorial aggression, more space sometimes just gives the dominant hamster more territory to defend — and the subordinate more ground to be cornered in. What I'd actually recommend before expanding the enclosure: add a second wheel and two or three extra hides immediately, and watch for 48 hours. If chasing reduces, space is the answer. If it continues or worsens, separate enclosures now — don't wait. What's the current hide and wheel situation?

Four months is actually a meaningful detail — that's when Roborovskis are hitting sexual maturity, which makes this more likely territorial/hormonal than play. The research on cage size resolving social tension at this age is thin and mixed. I wouldn't bet on space alone fixing this. Here's my confident call: buy a second enclosure now, and use it. The Savic Hamster Heaven Metro is my specific recommendation — pick up two if you can, or pair one with whatever you currently have. It gives strong floor space, good ventilation, and multiple levels without being difficult to clean. More importantly, it means you can separate immediately without scrambling. Keep them in the current setup only if chasing stops completely within 48 hours of adding a second wheel and extra hides. If it continues at four months old with hormones in the picture, separation isn't failure — it's the right outcome for both animals. Two happy solo Roborovskis beats one stressed pair every time.