Hydroid or other invert ID

coralboi56

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What are these in my tank? My best guess is some type of hydroid. If it’s not, please help ID. Thanks!
529273F6-F1B1-4BE8-9B50-A8897B6C0A07.jpeg
 

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ISpeakForTheSeas

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Can confirm not fan worms. It broke off and started swimming around like a jellyfish/hydroid
Yeah, looks hydroids undergoing strobilation (turning from polyps to ephyra - the free-swimming babies - then medusae - the free-swimming adults).
 

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