Thingy on acro

[acroholicreefer]

Can somebody help me ID these two things on a maricultured acro that I acquired last week? I don't think the thing in the first two pictures is red bugs since it is the only one that I have seen. I am guessing that the thing in the last two is a macro algae of some sort starting to grow on the coral.

 

[givinggoodwill]

I'd clip it just to be safe ...

 

[Reef Bass]

Thing 1 possible redbug. I see multiple what look like redbugs elsewhere. Research Interceptor or Bayer Insect Killer.

Thing 2 some weird vegetation which doesn't belong on your coral. Remove it. I'd probably just clip the branch behind it.

 

[rbp 4 135]

Thing 2 looks like it could be some sort of hydra.

 

[562R33f3r]

I'd clip it off just to be safe.

 

[acroholicreefer]

I'm starting to think it is some sort of hydra. Don't these usually die off on their own due to a lack of food source?

Here is a better picture of one. I am starting to see a lot of these on the acro.

 

[animalkingdom]

interesting second pic

 

[rbp 4 135]

I was going to say, I believe I see more than one on your first pic

 

[coker98]

I have a bunch of these hydra looking organisms on one frag. Anyone aware of them harming the coral?

 

[rbp 4 135]

I have read/heard they can sting and irritate coral. I had some come in as hitchhikers on a snail and have now taken up residence on my rock.
They actually look identical to the ones in your picture. I have been squirting vinegar on the little colonies of them since I'm dosing the vinegar any way. It seems to kill a few here and there but definately not effective for removing them entirely.

 

[acroholicreefer]

I have read/heard they can sting and irritate coral. I had some come in as hitchhikers on a snail and have now taken up residence on my rock.
They actually look identical to the ones in your picture. I have been squirting vinegar on the little colonies of them since I'm dosing the vinegar any way. It seems to kill a few here and there but definately not effective for removing them entirely.

Yeah, I have heard that they can irritate the coral but my acro seems fine at the moment.

How long have you had them?

 

[acroholicreefer]

http://************.com/2012/03/22/zanclea-hydroid-acropora/

Here is a link I found about hydroids

 

[Chrissypoo]

It is a hydra.

 

[Allmost]

1. Red bugs,

2. Hydro,

 

[rbp 4 135]

I've probably had them for around 6 months, the tank they are in has only been set up for 8-9 months now. I figured they will go away eventually. I started with dry rock, and they were able to get a foot hold pretty early with no competition for food or space from anything. Out of curisosity I did rub the back of my hand on a colony to see if they could sting me, as there plenty of reports out there about them having a nasty sting. I was unable to feel any form of tingle/sting. I have not noticed them taking up residence on any of my sps, but if they start I may have to take their extermination a little more seriously.

 

[acroholicreefer]

Here is another link where the guy took a picture of hydriods on his acro. He said that they went away with time.

The pictures in this link makes it well worth checking out.

http://reefcentral.com/forums/showthread.php?t=1480817&page=4