Over 200 guinea pigs have been seized by the RSPCA from a Brisbane garage suspected of being used for commercial breeding.

RSPCA Queensland CEO Mark Townend says complications could follow if the females housed in the mixed cages fall pregnant over the next 2 months.

The RSPCA is looking for households to re-home the animals, and is accepting donations of guinea pig housing, vegetables and pellets to support its network of foster carers.