I have had a blueface in my mostly lps/softy/mushroom tank for about 9 months now. The only thing he has ever bothered was the meaty or fleshy type lps like the open brains. I have symphillia brains, frogspawn,hammers, closed brains,pipe organs, disc corals, wide variety of mushrooms, leathers, favia brains and it never even looks twice at any of it. I have had him through the color change from juvenile to adult and is really a great looking fish. I don't have a clam because it would constantly nip at it since I feed my fish clams from time to time and they love them.