Pix & ID: Critters that come in your rocks: the good and the bad.

[taricha]

Originally Posted by Gwendelen

Taricha,

Would you say those are calcerous tubes? Prior to our new tank, I had zero interest in taxonomy, but now I am geeking out big time.

They are certainly not in as much of a tangled mass some in the pictures from this website, but I'm thinking the Sagebrush tube worm might be a candidate.

http://http://www.sealifecenter.com/...tail&bio_id=80

To find out if they are calcerous, push on them, if they collapse and come back, then no - that's like colonial hydroids. If they break off, then yes.

I'm saying they are calcerous because mine that look just like that are.

[xDabbed]

can anyone id this for me it has been here for a few months now since i added some new rock and just hangs out on the glass in relatively the same spot give or take a few inches..... it has also split off into a few other strands but they quickly vanished within a day or two... the vines coming off of it do seem to change positions every so often usually within a hour or less. cannot for the life of me figure out what it is or if it is possibly a problem?

[Karliah]

What in the world is this?! Tanks been up for a couple months and it's the first time I've ever seen it.
Warning* some possible explicit music in background. Mute video or don't watch if you don't want to here it.
First two videos are okay:
Third video has illumination, but the thing in question is more curled towards the camera the while time (possible reaction to light?)
Forth video is for scale. I take the macro lens off and pan out, taped to the tank is a dime for size reference. The rock it's next to/under is a little smaller than a marble.

Edit:
Tapatalk compressed the videos and they lost a good amount of detail. Sorry.

[Dannz]

Hi :-) only been at this 3 months and loving every minute. Found this awesome lil guy in the tank last night. Been trawling the net and wondered if anyone Knew exactly what it is? Its a slug for sure :-) but what type and is it a nuisance in a reef setup?

[Bakerman]

Originally Posted by Dannz

Hi :-) only been at this 3 months and loving every minute. Found this awesome lil guy in the tank last night. Been trawling the net and wondered if anyone Knew exactly what it is? Its a slug for sure :-) but what type and is it a nuisance in a reef setup?

Nudibranch. Recommend you get him out ASAP, at least until you can positive ID.

[pagojoe]

Originally Posted by Dannz

Hi :-) only been at this 3 months and loving every minute. Found this awesome lil guy in the tank last night. Been trawling the net and wondered if anyone Knew exactly what it is? Its a slug for sure :-) but what type and is it a nuisance in a reef setup?

Yeah, it's a tritoniid nudibranch. Not all nudibranchs are bad, but you'll want to remove this one.

[Un5tab1e]

Id please

[cloak]

Maybe a Peanut worm?

[ArrowCrab]

First pic, some grouping of coral perhaps?

Pics 2 and 4, the red stuff feels fairly firm

Pics 3 and 5, feels soft and is like a gelatinous blob, it recently detached from the rock and slowly floated around the sand till it tumbled into a corner and got stuck. I've seen a bunch of smaller ones sprout up around the tank as well.

Any ideas?

[Bakerman]

1 kinda looks like colonial yellow polyps.

[Sells]

I need help identifying these small white cylindrical structures. I've attached pictures of of my live stock and can send water parameters if needed.

[Bakerman]

Spirorbid worms. Totally harmless filter feeders. Sign of healthy tank. Can be sharp so watch the hands.

[Sells]

Thank You!

[relexus]

Got my RSM filled with live rock since nov 28th. It is one big surprise everyday.
Discovered so far : a tiny white crab with little black tips on his or her claws. Two tiny feathers and this in the picture below.
It has multiple feathery "arms" and it retracks in a hole? Got two of those. Has anyone got any idea.

[relexus]

Sorry for the blurry picture but it is the best i could do. Can any identify what this is?

[seahorsedreams]

Originally Posted by ArrowCrab

First pic, some grouping of coral perhaps?

Pics 2 and 4, the red stuff feels fairly firm

Pics 3 and 5, feels soft and is like a gelatinous blob, it recently detached from the rock and slowly floated around the sand till it tumbled into a corner and got stuck. I've seen a bunch of smaller ones sprout up around the tank as well.

Any ideas?

1 are colonial hydroids and 2 & 5 are Red Bubble Algae, Botryocladia. It's not the "good" branching Botryocladia, unfortunately. I can't really see 2/4.

[relexus]

Found this, it looks like an up side down xmas tree. One is blue the other green, has anyone got an idea?

[Sugar Magnolia]

Your pics are really to blurry to tell.

[seahorsedreams]

Originally Posted by seahorsedreams

1 are colonial hydroids and 2 & 5 are Red Bubble Algae, Botryocladia. It's not the "good" branching Botryocladia, unfortunately. I can't really see 2/4.

That would be 3 & 5.... hit the wrong key. (2 and 4, I can't see).

[relexus]

How come that i cannot post any pic over here? Tried it 3 times. But still nothing

Edit : oke this posted let's put a picture with it.
Can anyone tell me what this is? They look like upside down xmas trees

[Sugar Magnolia]

Well, that's not much better. It's probably Christmas tree worms, harmless.

[dragonsong]

I'm seeing bunches of these 1-3" long whitish, sometimes banded worms with 4 antennae on their heads. They come out at night and eat either algae or the tiny critters in it (or both) and leave trails of sandy waste behind them. They move moderately fast kind of like a centipede.

[C.Eymann]

Originally Posted by dragonsong

I'm seeing bunches of these 1-3" long whitish, sometimes banded worms with 4 antennae on their heads. They come out at night and eat either algae or the tiny critters in it (or both) and leave trails of sandy waste behind them. They move moderately fast kind of like a centipede.

baby enucid worms?

[Sugar Magnolia]

Originally Posted by dragonsong

I'm seeing bunches of these 1-3" long whitish, sometimes banded worms with 4 antennae on their heads. They come out at night and eat either algae or the tiny critters in it (or both) and leave trails of sandy waste behind them. They move moderately fast kind of like a centipede.

Nereid worms, harmless. http://chucksaddiction.thefishestate...itchworms.html

[dragonsong]

Originally Posted by C.Eymann

baby enucid worms?

I would actually throw the tank right out the window if they all ended up growing to that size

Originally Posted by Sugar Magnolia

Nereid worms, harmless. http://chucksaddiction.thefishestate...itchworms.html

OOooh this is definitely it. Right down to the behavior, i saw one snatching pods last night. They are sort of neat and actually are slowly helping out with an algae problem on a couple of the rocks. Thanks!!