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

[Sugar Magnolia]

Definitely a Eunice worm. Next time you see it remove it.

 

[chorn562]

Can i please get an ID on the things crawling on the closed up zoas?

 

[cloak]

Zoanthid-eating nudibranchs. :thumbdown

http://www.lionfishlair.com/hitchhiker/aeolid.shtml

 

[Sugar Magnolia]

Zoanthid-eating nudibranchs. :thumbdown

http://www.lionfishlair.com/hitchhiker/aeolid.shtml

Yes, aeolids. More info can be found here - http://www.reefkeeping.com/issues/2005-05/rs/

 

[ArtistikD]

can anyone tell me what this is

 

[nanoreef heaven]

can anyone tell me what this is

Flatworm

*Sent from my little corner of the reef. Nano nano!*

 

[Sugar Magnolia]

Harmless flatworm. Those eat copepods.

 

[fairladyZ]

So I kept getting glimpses of something so last night I had a stake out playing peekaboo and found what I believe Are atleast 4 bristleworms that I could see. Most were to tiny to get a picture with the phone but the big one I was able to sneak up on

Then looking around something caught my eye as it sucked back into my other live rock. It looks like a tubeworm that's black with tan stripes and looks like it is segmented and sucks each segment in on itself very quick and a couple feather looking ends at the mouth so I researched and think it's a peanut worm

None of the worms seem to bother my crabs or snails and they look to just feed on the rocks and I saw no head antenna just fuzzies. What I'm curious is if my id's are correct and if I should ditch the lava rock with the 4 bristleworms. I know they are good cuc but don't want them to over run my tank

 

[worm5406]

The last one does look like a peanut worm.

The other are bristle worms.

This is mine from last night:
<iframe width="1280" height="720" src="http://www.youtube.com/embed/U2j4aL0CK4c" frameborder="0" allowfullscreen></iframe>

Yeah they range in size.

 

[Sugar Magnolia]

I know they are good cuc but don't want them to over run my tank

They won't over run your tank. Their population is controlled by the availability of food. The only reason you would have a large population is if you are a heavy feeder.

 

[dirkomatic]

I guess these are some kind of eggs...? I only have dwarf ceriths, Florida ceriths, nassarius, nerites, an assortment of hermits and 3 yellowtail damsels. No coral at this time...

 

[dirkomatic]

A better picture... Any ideas?

 

[SushiGirl]

Must be damsel eggs, they're not eggs of any of those snails.

 

[dirkomatic]

Maybe not eggs? When I took the second photo I noticed they were kind of tall...? And the damsels are really young. Could they lay eggs when they are young.

 

[SushiGirl]

To be honest, I can't really tell what it is on my phone, even zoomed in really close. I just know it's not eggs of any of those snails LOL.

 

[brad1978]

new to the hobby

new to the hobby

trying to figure out if this stuff is maybe a sponge. its gorwing on the underside of my LR.

 

[brad1978]

maybe a better shot

 

[Sugar Magnolia]

trying to figure out if this stuff is maybe a sponge. its gorwing on the underside of my LR.

maybe a better shot

The branching things? Those are foraminiferons.

 

[faithenfire]

so i have colonial hydroids...
I've heard peppermints will eat them. Is that true? I've got a few pesky aptasia too they can snack on

 

[alexander_ktn]

so i have colonial hydroids...

The brown bushy kind on a stalk? If so I would recommend removing the rock they are on.
Edit: I mean these http://www.meerwasser-lexikon.de/tiere/821_Hydractinia_sp01.htm