Snail ID?
LFS said it was an Aussie Rock Snail. Looks encrusted or like someone glued a frag on it. Moves slow, clumsy as hell, and has tube worms growing on it. Possibly more, but nothing soft. The large tube at the underside had a large bristle worm in it that eventually moved to the rockwork. Keeping them under control with a wrass for now, but can't find any info on this snail. Not sure if the bristle worm was symbiotic or just a hitchhiker.
4 photos
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