What is this

[Melissajk]

I was cleaning my tank, and noticed this colony. Can you id?

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[Sniperhank]

Hard to see if they are either hydroids or polyps...but I have a feeling hydroids.

 

[Melissajk]

Are they bad?

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[Reefing Madness]

Colonial Hydroids

 

[Gregcoyote]

I think they are tunicates. They come in a vast variety. I shot these in the Caribbean.




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