Chelukhi

The Chelukhi are an enigmatic species of gas giant dwellers that reside in the Perseus Arm. They had limited, periodic contact with the Covenant, with the most recent intelligence suggesting that they were in a fairly settled, sedentary state with few territorial expansions. Some evidence available to the Covenant suggests that the Chelukhi may in fact be a tributary species to an as-of-yet unknown polity, though this has not been substantiated as the Chelukhi were notoriously reluctant to volunteer information to the Covenant. Covenant records imply they are roughly the Covenant's technological peers (or were seen as such at one point in time), which coupled with their distance from the Holy Ecumene as well as the challenges involved with their gaseous natural habitat made their conversion non-feasible.