The volus are an associate race on the Citadel with their own embassy, but are also a client race of the turians. They hail from Irune, which possesses a high-pressure greenhouse atmosphere able to support an ammonia-based biochemistry. As a result, the volus must wear pressure suits and breathers when dealing with other species.
Racial Aspect: “I’ll Buy That For A Credit!”
Because they are not physically adept compared to most species, volus mostly make their influence felt through trade and commerce, and they have a long history on the Citadel.