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On a trachyphylliaLooks like a gall crab of some sort, which live in the tissues of LPS coral. They are generally considered harmful since they irritate their hosts.
Where did you find it? It would be incredibly odd for it to leave it's coral host, so it might not be a gall after all.
@ISpeakForTheSeas can help you get a more detailed ID.
Yeah, the reason I'm thinking X. murigera is because of this (pic taken from the video):Still sounds like a gall crab to me. It won't survive long off of the coral, so flush or feed it to a fish.
I do have a tridacna clamHonestly, I'm thinking that may be a molt rather than the crab itself, but - regardless - I'm fairly confident that's a pea crab of some variety (taxonomic family Pinnotheridae). Do you have any clams or other bivalves in the tank?
Edit: Based on the top of the shell, it's most likely Xanthasia murigera; it's known to inhabit giant clams.
Its moving and aliveHonestly, I'm thinking that may be a molt rather than the crab itself, but - regardless - I'm fairly confident that's a pea crab of some variety (taxonomic family Pinnotheridae). Do you have any clams or other bivalves in the tank?
Edit: Based on the top of the shell, it's most likely Xanthasia murigera; it's known to inhabit giant clams.
Should i kill it?Honestly, I'm thinking that may be a molt rather than the crab itself, but - regardless - I'm fairly confident that's a pea crab of some variety (taxonomic family Pinnotheridae). Do you have any clams or other bivalves in the tank?
Edit: Based on the top of the shell, it's most likely Xanthasia murigera; it's known to inhabit giant clams.
Up to you - it shouldn't be too harmful (they're considered commensal).Should i kill it?
AlrightUp to you - it shouldn't be too harmful (they're considered commensal).