Little white "trees" growing on a piece of LR

bang guy

Moderator
At first I thought of the Colony stage of Ctenophores but then with the second picture I think they are clearly the Hydroid stage of a Jellyfish species.

Not a good thing. It's not horrible but they will sting anything around them and will significantly reduce the pod populations.
 

lauraleighx3

New Member
Yeah but their little branches go all the way down the part coming out of the rock.
So this is in a FOWLR tank. I currently have a picasso trigger, flameback angel, maroon clown, and a starry blenny. Will eventually add a paddle fin wrasse and a foxface. Nothing that will specifically eat the pods... Should I be concerned? Do I get rid of them? How do I get rid of them if so.
 

2quills

Well-Known Member
I've never had to deal with these before so I'm not sure about methods for removal, hopefully someone will chime in.
The pic I posted was the polyp stage of an Immortal Jelly (forget scientific name). Common to the carribean but have been showing up in places all over the world. The Immortals are interesting because they are the only known species on the planet that can change their cell structure and revert from the adult stage back to the polyp stage at will. This is very interesting to science.
I was currious if that's what you had in your tank.
 

bang guy

Moderator
The best way I have found to remove Hydroids is squirting boiling water on them using a turkey baster. If the rock can be removed then a blow torch is effective.
 
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