The ammonia from their waste can cause severe respiratory infections without proper ventilation, this is never suitable for rats.

These cages are marketed towards mice and rats but are cruel and offer physically dangerous accessories.

With bars on the floor, this cage offers the risk of bumble foot as well as being severely undersized.

This cage is too small, offers no room for exploration or enough enrichment inside the cage as well as bar flooring.

This cage is still too close to a tank which will have severe ammonia build up risks.

This cage is undersized and offers hard plastic tubes known for building ammonia as well as fatally trapping rats.

This cage offers no room for exercise or the ability to add in much enrichment. Bigger than some, but still not suitable.

Marketed to rats and mice, these cages are cramped even for a mouse. Most wheels are dangerous causing spinal damage.

Wood cages/wardrobe cages pose the risk of wood and varnish toxicity, being easily escapable and allowing ammonia build up.