ID please. From the darkness they came.

butesch

New member
So not sure what this is popping it's head outside of a small dark hole in a rock. I remember seeing it a while back when I started my tank and I was fighting aiptasia at the time. Thank you Berghias! I thought I nuked this as I thought they were a type of hydroid. Apparently 1.5 years later they have lived and are coming out to play again. They have a brown stalk and a green head with small tentacle like stuff around it.

Are they are hydroid of some sort?
Should I destroy them before they destroy me?
 

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So not sure what this is popping it's head outside of a small dark hole in a rock. I remember seeing it a while back when I started my tank and I was fighting aiptasia at the time. Thank you Berghias! I thought I nuked this as I thought they were a type of hydroid. Apparently 1.5 years later they have lived and are coming out to play again. They have a brown stalk and a green head with small tentacle like stuff around it.

Are they are hydroid of some sort?
Should I destroy them before they destroy me?

Hydroids. They can take over if conditions are favorable. Most noticeable they are able to sting corals to death.
 
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