Arofluid is when one is fluid between aro-spec orientations. For example, one might be recipromantic one moment but demiromantic another. It is different from aroflux as it is fluid between different identities instead of fluctuating. One who is arofluid may feel alloromantic at some times.
Sources
https://www.deviantart.com/pride-flags/art/Arofluid-633720259