All guinea pigs require regular grooming and care. This can include nail clipping every 4-6 weeks, boar cleaning for males after 4 months, hair brushing, cleaning ears and checking teeth. Some breeds do require additional care and these include those with longer hair. Long Haired Breeds Peruvian: These piggies are often more petite (under 800g full grown) and have smaller frames. Their hair is long and straight, growing down to and sometimes past