Missing Blenny

[Gizmo]

Hey all,

I got a Lawnmower blenny about a week ago, and the little dumbass went and hoped into the overflow. I can't fish him out with a net cause the overflow is filled with piping. Any suggestions how to wooo out a blenny that has lots of food Ack, And I can't find my yellowhead jawfish now. Are these things prone to disappearing? I moved rock looking for perhaps a carcus, nadda.