Hydroid?

kkgaskin90

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Is this a hydroid? I've read everything from "harmless" to "PANIC AND KILL IT WITH FIRE!!!"
They're in my QT
a8171a002e270c383fed777a238beef9.jpg
 
Here's a video (if it will upload in HD...) - you can see it pulsing in the water close to the top. So definitely a hydroid. There seems to be some debate over whether or not they are harmful. Thoughts?

 
Last edited:

WHAT KIND OF SUBSTRATE ARE YOU RUNNING ON YOUR TANK?

  • Bare bottom

    Votes: 6 20.7%
  • A shallow bed of fine sand

    Votes: 8 27.6%
  • A shallow bed of coarser sand

    Votes: 6 20.7%
  • A deep sand bed

    Votes: 3 10.3%
  • Mixed substrate or varying sand depth

    Votes: 6 20.7%
  • Some other substrate (posted in the comments)

    Votes: 0 0.0%
  • I don’t have a reef tank yet

    Votes: 0 0.0%
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