Missing Lawnmower Blenny

[egill]

2 weeks ago I added a Lawnmower Blenny, a sixline wrasse and a light footed sally to my 75g tank. Already had 2 maroon clowns, hippo tang, 7 hermits and about 25 snails. Last time we seen the Lawnmower we 1 week ago. He looked very healthy and was eating (looked like a dog chomping on the live rock) Now we cannot locate him anywere. Have 100# of live rock but I have it spaced out where I can see pretty much everywhere inbetween the rock. Would the light footed sally have gotten a hold of him???
Edit: We do have a top on the tank so jumping would not be the reason we can't find him

 

[wfd1008]

do you have a top on your tan? he could have jumped out. i heard that a sally light foot would get fish if the crab was big enough, i have no first hand experience on the crab, just what i've heard. on the jumping, i have had fish jump out the tank.