Nitro was working as a rudo (Spanish term for a person portraying a bad guy character in wrestling), which mean Pequeño Nitro was a rudo as well. The Pequeño Nitro was introduced in the summer of 2009 where he was introduced as the first (and so far only) member of Los Pequeño Guerreros Tuareg ("The Little Tuareg Warriors"), a mini version of Los Guerreros Tuareg, led by Nitro.
No previous ring identities have been confirmed for Pequeño Nitro but it has been stated that he made his professional debut in 2005 and did not adopt the Pequeño Nitro mask and ring persona until 2009, which means he worked under other names before this. In Lucha Libre it is traditional to keep the true identify of a masked wrestler a secret, not revealing their real names and often not revealing what previous ring names they have competed under.
His name means "Little Nitro" and his ring character is based on Nitro, a regular-sized luchador. Pequeño Nitro's real name is not a matter of public record, as is often the case with masked wrestlers in Mexico where their private lives are kept a secret from the wrestling fans. This does not necessarily mean that Pequeño Nitro is a dwarf as several wrestlers who are just shorter in stature work in the "Mini" division. Pequeño Nitro is a Mexican luchador enmascarado, or masked professional wrestler, working for the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL) in their Mini-Estrella division.