Rats are social and must always live in pairs/groups. They're very active so need as much space as possible, filled with toys, hammocks and things to climb on. They're usually very interactive and thrive with lots of human attention.
Have a look at our 'Ideal housing' section to see some suitable set-ups for rats
Jack & Finn
These boys are around 1.5 years old. Finn arrived with respiratory problems which he's had multiple vet trips and courses of meds for, including nebulisation.
He's much better than he used to be but he does have some lung scarring