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

[Dotterer]

Hey there - came home late last night and wanted to check on a RBT that I had put earlier in the days, so turned on just the blues and saw this beast!



Here's a full movie of it moving around.

https://www.dropbox.com/s/3y123f9ve8f6v2p/2015-07-25 23.26.57.mov?dl=0

Sorry I didn't cut the blues and move to white - wasn't thinking while I was filming.

Any ideas?

 

[Sugar Magnolia]

Hey there - came home late last night and wanted to check on a RBT that I had put earlier in the days, so turned on just the blues and saw this beast!



Here's a full movie of it moving around.

https://www.dropbox.com/s/3y123f9ve8f6v2p/2015-07-25 23.26.57.mov?dl=0

Sorry I didn't cut the blues and move to white - wasn't thinking while I was filming.

Any ideas?

It's a harmless stomatella snail.

 

[Mrs4444]

Ficopomatus enigmaticus (Australian Tubeworm) Good or bad?

Ficopomatus enigmaticus (Australian Tubeworm) Good or bad?

Hello! This is my first post. My husband and I are about a month into getting our 125 gallon aquarium going. Right now, it's mostly rock and two tangs. Last night, I took a flashlight to look for hitchhikers. One little cutie that I found is apparently an Australian Tubeworm. In the wild, this is an "invasive" species, but I haven't read anything bad about it in terms of aquariums. Here's a (bad) photo. Should we leave it alone or take it out? Thoughts? Thanks!

 

[Mrs4444]

Wow. That's really cool! I'm just a beginner, so I find this especially interesting. Thanks.

 

[Mrs4444]

Wow. I can't believe that I'm one day into this hobby and can answer your question (I think). I just this morning researched one of these in our tank. I THINK it is a Ficopomatus enigmaticus (Australian Tubeworm). I started a thread this morning to ask if we should remove it or not, because many sites called it harmless, but I guess it's invasive in the wild. Let me know if you find out otherwise...

 

[Dotterer]

It's a harmless stomatella snail.

Thank you so much!

 

[Karliah]

Any idea what this is? Came on the live rock I got last night. Slightly deeper color than in the pictures.

 

[cloak]

Foraminiferans most likely. (harmless)

 

[Snarl]

Very cool! They're mini-brittle stars. Do you have any idea where the hitchhiked in? I'm thinking of ordering some from Indo Pacific farms. http://ipsf.com/ministars.html

Im sorry I have no idea where they came from. Just showed up suddenly whats seems out of no where.

 

[Goldmund]

Hoping I can get an ID on some stuff that's been popping up in my tank.

This is covering the underside mainly of a few rocks.



These little guys are all over, but I've never seen them do anything.




Bubble algae?


And the dreaded aiptasia

 

[taricha]

First I think it's a clear sponge. Body shape more irregular than tunicates usually are.
2nd is vermetid snail. Some people (me) find annoying, but not a big deal.
The others I agree.

 

[Goldmund]

First I think it's a clear sponge. Body shape more irregular than tunicates usually are.
2nd is vermetid snail. Some people (me) find annoying, but not a big deal.
The others I agree.

Thanks!

 

[raven312]

This guy came in on my rock, though it wasn't visible at first. It's starting to grow now, but still pretty small. I get the impression it's a finger leather but I can't be sure:



(I have to work on getting a good close-up). I'd mentioned finding "purple flower-like" things on one of my rocks, now it's growing all over the rock. I hope someone can see it and help me ID.



Are they a coral? If so, they look like they're going to try to take over.

 

[taricha]

First thing is so small in that pic it could be anything.
Second, those look like tiny feather duster worms. If so, they'll retract into the rock when threatened.

 

[raven312]

In doing a LOT of digging, it appears that I have blue star polyps (ALL over the place!)

 

[Sugar Magnolia]

Blue clove polyps.

 

[davehead86]

What is this thing?!?!?!
It looks like a spider with really long slimy legs.


Also my rocks are turning brown, anyone have a scientific name for the algae / slim causing this browning?

 

[Bakerman]

I can't see much of anything in that pic dude.

 

[davehead86]

Ugh. Stupid camera on the phone.

Here is the best i can get, its a little fuzzy.

 

[cloak]

It's probably just a spaghetti worm. (harmless) As far as that brown stuff your seeing goes, diatoms would be my guess.

http://www.reefkeeping.com/issues/2002-06/rs/index.php

http://www.reefcleaners.org/nuisance-algae-id-guide