Guinea pigs and rabbits sharing a room: supplies

A shared room for guinea pigs and rabbits is actually a really common setup, but it needs a bit of thought because while the two species can coexist in the same space, they should never share an enclosure — rabbits can injure guinea pigs, often without meaning to, and they have different dietary and social needs. Guinea pigs especially are social animals that should always be kept in pairs or groups, and space is the single most underestimated requirement — most cages sold for guinea pigs are simply too small for two. Before I make any recommendations, can you tell me the ages of your guinea pigs and rabbits, whether either pair currently has housing you're happy with, and what you're mainly looking to sort out — housing, food, or enrichment?

That's really helpful, thank you. If the guinea pig cage feels cramped, it almost certainly is — for two adults you want a minimum of 120cm by 60cm of floor space, and bigger is always better. What's the current cage, roughly, and is it indoors? That'll help me point you to the right upgrade without overshooting your space or budget.

Right, yes — that size is sold constantly and it's consistently too small for two guinea pigs long-term. For an indoor upgrade that gives proper space without taking over the room, I'd recommend the Midwest Homes for Pets Guinea Habitat Plus. It's a 120cm by 60cm C&C-style enclosure with a canvas floor and a divider panel you don't have to use. It folds flat, which is genuinely useful for cleaning, and it's one of the few cages at this price point that actually meets the space minimum rather than just marketing itself as adequate. It comes up regularly on Amazon UK in the £60–80 range. The open-top design also means enrichment like tunnels and hides are easy to rearrange, which brings me to your second question — what kinds of enrichment do you currently have for the rabbits?

Good news — there's real overlap here. Cardboard tunnels, willow balls, wooden chew toys, and hay-based forage toys are safe and genuinely enjoyed by both species, so you don't need separate enrichment inventories. The main thing to avoid sharing is anything with rabbit-specific mineral licks or treats, since guinea pigs need vitamin C in their diet and rabbits don't — so treat and supplement products should stay species-specific. But for physical enrichment, buy one set and use it for both. A bag of Rosewood Naturals Small Animal Activity toys or similar mixed willow and seagrass packs covers both perfectly well. Is there anything else you're trying to square away — hay supply, bedding, or feeders?

You can absolutely consolidate that. Both species eat Timothy hay as their staple and have the same basic requirement — unlimited access, all day. A large bulk bag like Hay Experts Premium Timothy Hay (available on Amazon UK, typically 3–5kg bags) works fine for both. The only caveat is that guinea pigs also need fresh leafy greens daily for their vitamin C, which rabbits don't strictly require, but the hay itself is interchangeable. Buying one big bag and keeping it in an airtight container will save you money and reduce the clutter of multiple open bags significantly.