Chinchilla vs Degu

The same axes for both animals, taken from the same care guides, so this is a like-for-like comparison rather than two articles written months apart. Neither animal is the right answer on its own — the question is which one fits the space, the budget and the routine you actually have.

Small Pets
Chinchilla
Chinchilla lanigera
Difficulty
Advanced
Lifespan
10-15 years
Adult size
25-35 cm body, plus tail
Minimum space
5,000 cm² floor (775 sq in)
Company
Must be kept in at least 2
Daily time
Daily; long-term, plus careful temperature control
Running cost
High
Habitat
Tall multi-level cage 1m+ high, for a pair
Diet
Unlimited grass hay plus measured plain pellets
Suits you if
Experienced keepers wanting a long-lived pet. Owners able to keep rooms cool. Those with evening-active routines
Watch out for
Overheating; needs cool, low-humidity rooms. Inadequate hay causing dental disease. Sugary or fatty treats upsetting digestion

Full Chinchilla guide

Small Pets
Degu
Octodon degus
Difficulty
Intermediate
Lifespan
6-9 years
Adult size
25-31cm including tail; 170-300g
Minimum space
5,400 cm² floor (837 sq in)
Company
Must be kept in at least 2
Daily time
Medium; daily interaction and cleaning
Running cost
Medium
Habitat
Tall multi-level cage 90x60x60cm+ for a pair/group
Diet
Strict herbivore; sugar-free, high-fibre
Suits you if
Owners wanting an active, daytime rodent. Keepers who can house a bonded pair or group. People committed to a strict sugar-free diet
Watch out for
Keeping a single degu alone. Feeding fruit, carrots, or sugary mixes (diabetes). Lifting by the tail (causes degloving)

Full Degu guide

How to read this

Every row is filled from the same field of the same care guide for both animals, so nothing here is cherry-picked to favour one of them.

Minimum space is the figure from each species' housing guidance, converted to one unit. It is a floor, not a target.

What this does not tell you: your experience, your household, your climate, or which animal you will actually enjoy. Difficulty is our judgement, not a measurement. Read both full guides before deciding — and if the honest answer is neither, that is a good outcome too.