Would like a clearer picture but looks to me like a Stuartgranti Cobue mix.
This is one of the fish sold to me as Cobue last year. Face/mouth is shorter than OP's but the Cobue I'd looked up online had red ventral fins so I figured I had hybrids.noki said:Not pure Aulonocara, probably an Electric blue Fryeri mixed in. Face too long. Hybrids are common.