can someone ID what this is?

reeferdugong

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Hi guys, does someone have an idea what these "tentacles" might be?

They came from the coral and they don‘t move really much. They just sway.

Good or bad?

EFBD027E-2A9B-4A66-AF0B-5A3A0E39E0E3.jpeg
 

When to mix up fish meal: When was the last time you tried a different brand of food for your reef?

  • I regularly change the food that I feed to the tank.

    Votes: 33 26.8%
  • I occasionally change the food that I feed to the tank.

    Votes: 40 32.5%
  • I rarely change the food that I feed to the tank.

    Votes: 37 30.1%
  • I never change the food that I feed to the tank.

    Votes: 9 7.3%
  • Other.

    Votes: 4 3.3%
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