The Coypu Rat is a medium-sized animal, described as calm, semi-aquatic, typically living 6–8 years.
Balancing calm against semi-aquatic
Breeds described as both calm and semi-aquatic need the two managed together rather than separately. With a medium animal that usually means a predictable routine first and training second - the routine is what makes the training stick.
Planning for about 7 years
A Coypu Rat is with you for about 7 years. Budget and routine both need to survive that, including the last quarter of it when a medium animal needs more veterinary attention than it did young.
Space, and what actually matters
Floor area matters less than layout. A medium animal needs a settled spot out of the main walkway, and surfaces that give grip.
Households this suits
Homes where someone is around for part of the day suit the Coypu Rat well. A quieter household usually suits this breed better than a busy one.
Where people go wrong
Choosing on appearance and fitting the household around it afterwards. It works better the other way: decide the hours and the space you have, then ask whether a medium animal fits them.
A breed from South America, living in India
The Coypu Rat was developed in South America. The part that travels badly is rarely temperament - it is the coat and the tolerance for heat. Plan the year around that and most of the rest follows.
Does your week fit this breed?
The honest test is not whether you want a animal, but who is responsible for it at seven in the morning on a weekday. A calm medium animal does not fill eleven empty hours quietly.