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 7 months old. They're not ready for adoption yet as Finn is on meds and a nebuliser for a respiratory problem