Coraline on live rock

[Frank83]

This stuff is growing on my Live rock...is it ok or bad? I've never seen it before...it just appeared there yesterday. It is brownish red with a long skirt. looks kind of like a miniature zoo with a real long skirt.

 

http://www.nano-reef.com/gallery/showphoto...o=14557&cat=500

 

Also, if anyone can PM me and fill me in on how to post photos, that would be greatly appreciated.

[jenniebutterfly]

looks like hydroids. oh and if you right click on your pic in the gallery, copy it and put it after [ i m g ] with no spaces and then end it with [/ i m g ]again with no spaces

[Frank83]

 

Thanks. Got the image to work

 

What exactly are hydroids? The one's in the pic I'm refering to are the red blobish thing in the middle of the picture (sorry for the image quality, but I'm not a very good photographer).

[Six]

looks like cyanobacteria to me, though i cant tell the texture from the pic. coralline is the purple, some macroalgae is the green, the red, it's really hard to tell. can you get another pic? turning pumps off and cleaning glass will help get a crisp shot.

 

GL

[Reef_Mad_Man]

"form" of hydriod. dosent sting anything but can rapidly multiply.

[Caesar777]

They are hydroids. (See the oral discs?) Not sure about the non-stinging, though... Most, if not all, hydroids pack quite a potent sting, harmful to corals. I'd try to research how to get rid of them, though it's quite difficult.