should i let this die or not?? help needed

[looneytunes]

it is dying out of the tank and not sure if i should let it. found in a nano i just shut down this morning. was in the sand bed. seems some sort of mollusk but i have no clue.

please help
thank you,
christine

 

[Amatuer21]

Looks like a harmless macaroni noodle

 

[looneytunes]

thank you put it in the refugium.