Thing Identification

imarino326

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Can anyone tell me why these things are? There’s about 30 of them all throughout my tank, and they’re all about the same size. My friend says they’re aiptasia, but I like variety of opinions.
94C565E5-9C1A-48C8-A963-BA20939C4B90.jpeg
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cloak

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They look more like Hydroids to me. These are harmless in most cases and they tend to disappear just as fast as they show up. Keep an eye on them though.
 
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Orphek OR3 reef aquarium LED bar

Polyp polynomial: How many heads do you start with when buying zoas?

  • One head is enough to get started.

    Votes: 27 10.6%
  • 2 to 4 heads.

    Votes: 145 57.1%
  • 5 heads or more.

    Votes: 65 25.6%
  • Full colony.

    Votes: 10 3.9%
  • Other.

    Votes: 7 2.8%

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