Russian Blue Rat

Scientific NameRattus norvegicus
Common NameRussian Blue Rat
Care LevelIntermediate
Lifespan2-3 years
Adult Size9-11 inches (including tail)
OriginDerived from the Norway rat lineage
TemperamentFriendly, Intelligent, Social

History & Domestication

The Russian Blue rat is a specific color variety of the well-known Rattus norvegicus. Its historical background stems from the Norway rat lineage, where unique color mutations started appearing. The Russian Blue rat, with its distinct coat color, soon captured the attention of breeders and rat enthusiasts.

Over the years, through careful selective breeding, the Russian Blue rat was developed. Their striking blue-grey coat color made them a popular choice among potential rat owners, leading to a higher demand and greater emphasis on refining the breed in terms of temperament, health, and coat quality.


The size of a mature Russian Blue rat typically ranges from 9 to 11 inches, including its tail. As with many rat breeds, males might be somewhat larger and more robust compared to females. Their sturdy and compact body, combined with their sleek fur, gives them a distinctively elegant appearance.


Russian Blue rats, on average, have a lifespan of 2 to 3 years. Their life expectancy can be influenced by several factors, including genetics, care quality, diet, and environment. With optimal care, regular check-ups, and a balanced diet, some individuals may even live slightly longer.


Breeding Russian Blue rats necessitates an understanding of rat genetics, especially when striving for the perfect blue-grey shade. Typically, breeders aim to pair individuals with strong Russian Blue lineage to preserve and enhance the desired coat color. Breeding also takes into consideration temperament and health traits to produce well-rounded offspring.

Unique Features

The primary unique feature of the Russian Blue rat is its beautiful blue-grey coat, which sets it apart from other rat varieties. The coat has a deep, dense hue, giving the rat an almost velvety appearance. Additionally, some Russian Blue rats might also exhibit captivating ruby or pink eyes, further enhancing their aesthetic appeal.

Behavior and Temperament

Russian Blue rats are renowned for their friendly and social nature. They are often curious, intelligent, and enjoy engaging in play or exploration. Their temperament makes them excellent pets, especially for families. They can bond deeply with their human caregivers, displaying affection and enjoying interactive play sessions.


Regular handling from a young age is beneficial for Russian Blue rats. Their sociable nature means they generally respond positively to gentle interactions. When handling, always ensure to support their body, making them feel secure. Given their trust, they can be easily trained and can even learn to respond to simple commands or tricks.

Grooming Needs

Their sleek coat doesn’t require extensive grooming. A periodic check for any signs of dirt or pests and a gentle wipe down with a damp cloth should suffice. While they groom themselves quite regularly, providing a sand bath can help them maintain a clean and shiny coat. As with all rats, monitoring their nails and teeth for any irregularities is essential.

Diet & Nutrition

Russian Blue rats thrive on a balanced omnivorous diet. High-quality rat pellets should form the base of their diet, supplemented with fresh fruits, vegetables, and occasional lean protein sources. Fresh water should be available at all times. It’s crucial to avoid overfeeding and ensure they get a mix of nutrients.


Russian Blue rats prefer ambient temperatures, ideally kept between 65°F to 75°F. Their environment should be draft-free and shielded from direct sunlight. It’s essential to monitor their living space, ensuring it remains comfortable and free from sudden temperature fluctuations.

Common Health Issues

Russian Blue rats share common health concerns with other domesticated rats, including respiratory issues, tumors, and dental problems. Their unique coat color does not predispose them to any specific health challenges. Regular veterinary visits can aid in early detection and treatment of potential health issues.

Habitat Requirements

A spacious cage with adequate ventilation is vital for these rats. The cage should have multiple levels for climbing, along with hideouts and toys to stimulate their active minds. Soft bedding made from paper products or aspen shavings is ideal, as it helps in waste absorption and offers comfort.

Cost of Care

The initial purchase or adoption cost for a Russian Blue rat might be marginally higher due to their unique coat color. Recurring expenses related to food, habitat maintenance, toys, and health care are on par with other rat breeds. Ensuring they receive quality care and nutrition can help reduce unforeseen medical expenses in the future.

Russian Blue Rat FAQs (Frequently Asked Questions)