Bristle tail filefish to eat majanos?

Bongo Shrimp

P. ceratophthalma
So I might have let the majanos in my 29g biocube get a little (way) out of control. And I really don't want to start pulling all the rock out and messing everything up. I heard a bristle tail might eat them. I am a little nervous about my big clam and corals but if have heard mixed things.

Any insight?
 
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