MYSTERY REEF ANIMAL: Can You ID This Invertebrate?

24 Sep, 2021

This marine invertebrate is currently living at A&M Aquatics in Lansing, Michigan. Its identity has baffled more than a few aquarists and biologists who have seen it. Image: Josh Spearow/A&M.

Know what this reef animal is? Its identity and the story behind it will be included in REEF VISIONS in the November/December 2021 Issue of CORAL.


1] It is from the tropical Indo-Pacific.

2] It is currently about 6 inches (15 cm) in diameter.

3] It has a good appetite and has lived for several years in the Michigan facilities of the marine livestock wholesale and aquaculture company A&M Aquatics.

Post your answer below in the comments, and then CLICK HERE FOR THE BIG REVEAL and see if you guessed correctly!

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About the author

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Reef To Rainforest

Reef to Rainforest Media, LLC is the publisher of award-winning magazines and books in the fields of aquarium keeping, aquatics, and marine science. It is the English-language publisher of CORAL Magazine and is based in Shelburne, Vermont, USA.


  1. September 24, 2021


  2. September 24, 2021

    Dwarf carpet anemone

  3. September 25, 2021

    stichodactyla tapetum

  4. September 26, 2021

    Well hard to tell w/o context, am going also w plate coral, heliofungia

  5. September 26, 2021

    Minimaxi carpet nem

  6. September 27, 2021

    Carpet anemone

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