Can anyone help me ID this, it’s encrusted in my Hammer colony I recently bought. Is it part of the Hammer? It opens and closes as if feeding has tiny hair like tentacles and closes tight shut when I have tried to pick it out.
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If so, should it be removed?Spaghetti worm maybe?
Agree with this.I'm guessing either barnacle or vermetid snail. It is not harmful, but most people think it is unattractive. You can cover the opening with super glue gel to kill it.