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

[oldbones]

So, I brought home a nice big live rock from the LFS the other day, I'm watching it in my qt for a couple days before it goes into my brute as seed for my new Marco rocks.

In the meantime, it's been fun to watch. Has some nice macro algae, lots of pods, some sort of small clam and more.

The weird one is some kind of worm. Lives in a hole or tube in the rock, and extends out to graze over the rock around the mouth of it's hole. It extends out at least an inch. It's dark brown, and smooth skinned like an earthworm (not ribbed). It actually looks much like the snout of a Nassarius snail. Very reactive to light, it goes back in the hole with a quickness!

What is it?

[Sugar Magnolia]

Sounds like a peanut worm. Harmless.

[tehpineapple]

Any idea what these are (if anything)?

The rocks have only been in my tank for about 2 days now and I'm starting to be able to tell what is and isn't rock.







The pictures are zoomed in and kinda grainy. It's hard to see but they are red in color and clearly not part of the rock.

[Martini5788]

How zoomed in? Maybe a macro algae of some kind?

[tehpineapple]

It's zoomed in as far as my iPhone6 will zoom. The one in the middle picture is sticking out about 1/4". They are all about the size of a standard pencil eraser.

[Sugar Magnolia]

Foramineferons. Harmless.

[tehpineapple]

Cool, thank you

[Jive_Turkey]

I found this spider web like material on my live rock. The tank has been established since January 2015. I have not ever noticed it move or get larger. It does not light up under the actinics. I also gave it a poke with my tweezers and it felt soft and fragile. The spot is approximately the size of a quarter. Any ideas what it could be?

[Oneloudinfiniti]

Please help identify I have two hitchhikers in the same she'll I think one is a bristle worm, should I leave him? The other comes out of a hole in the side of the shell slowly opens like a flower than if startled closes and hides super fast. What are they and should I leave them?

[Oneloudinfiniti]

See previous post

[Cbaby1177]

What is this inside the tube? It's in my sump.

[cloak]

Originally Posted by Oneloudinfiniti

Please help identify I have two hitchhikers in the same she'll I think one is a bristle worm, should I leave him? The other comes out of a hole in the side of the shell slowly opens like a flower than if startled closes and hides super fast. What are they and should I leave them?

It looks like a bristle worm and a feather duster, both of which are harmless.

[bruindave]

any ideas on what the black round things pointed out in red are?

[Martini5788]

Stomatella or limpet possibly, hard to tell from the picture but the one on the left looks like that and if they all look the same then that's probably what they are. Get a closer and clearer picture to be sure. Both and great cuc

[bruindave]

here is hopefully some better pictures of it. they don't move so i don't think they're snails.

it's soft and squishy when i touch it. is it safe?

[cloak]

Originally Posted by bruindave

here is hopefully some better pictures of it. they don't move so i don't think they're snails.

it's soft and squishy when i touch it. is it safe?

Sea Squirts or Tunicates perhaps?

http://www.reefkeeping.com/issues/2005-03/rs/index.php

http://www.saltcorner.com/AquariumLi...p?SectionID=36

[bruindave]

Originally Posted by cloak

Sea Squirts or Tunicates perhaps?

http://www.reefkeeping.com/issues/2005-03/rs/index.php

http://www.saltcorner.com/AquariumLi...p?SectionID=36

Here's one more picture

[Martini5788]

Originally Posted by bruindave

here is hopefully some better pictures of it. they don't move so i don't think they're snails.

it's soft and squishy when i touch it. is it safe?

Yeah j looked at the last picture again and I think my eyes were playing tricks on me. Sorry about that.

[Rhygar666]

first 2 pics one anemone i got private as a http://www.reeflex.net/tiere/1840_Cr...sis_crassa.htm
but im absolutely not sure pics doesnt look like it, maybe someone can

third pic pls id, i know bad quality

[Martini5788]

3rd one looks like aipstasia

[Rbaker1325]

Hey guys. First if I'm posting this in the wrong place please let me know. Second. I have found some slug, or something attached to a zoa frag. 2 to be exact. I have not put them in the tank and was hoping if you could tell me what they are, and if they are good or bad. Thank you all in advanced for the help. It was one of the more interesting things i have seen in the hobby.

[Martini5788]

It's a nudibranch. Some of them eat zoas, but I would wait
For someone else to comment or Google nudibranch identification or something along those lines to figure out which species you have

[Sugar Magnolia]

Originally Posted by Rhygar666

first 2 pics one anemone i got private as a http://www.reeflex.net/tiere/1840_Cr...sis_crassa.htm
but im absolutely not sure pics doesnt look like it, maybe someone can

third pic pls id, i know bad quality

All of them are pest anemones. You'll want to inject them with Joe's Juice, Aiptasia X, boiling water.

Originally Posted by Rbaker1325

Hey guys. First if I'm posting this in the wrong place please let me know. Second. I have found some slug, or something attached to a zoa frag. 2 to be exact. I have not put them in the tank and was hoping if you could tell me what they are, and if they are good or bad. Thank you all in advanced for the help. It was one of the more interesting things i have seen in the hobby.

Filter feeding cucumber, harmless.

[Martini5788]

What is this guy? I caught him off the coast of sc in the marshes. I know it's a pistol that lost its big claw, but I'm curious as to what species it is.

[Kyle461]

New Zoa rock, killed an aiptasia and found this guy in the process. Looks like he has small horns? Any ideas?