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

[Sk8r]

Put it in your sump. If you have zoas, I'd suspect that's not good. Most things are safe in the sump or fuge.

 

[nanoreef heaven]

Thats crazy looking.

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

 

[LeslieH]

It's an opistobranch sea slug, a species of Elysia. They eat green algae so corals & zoas are perfectly safe.

 

[LeslieH]

I've seen this thing a couple times now. It's about a half inch long with curly frond-like appendages on the length of its body. This is a super macro photo. What is it and is it reef-safe? Thanks.

It's a harmless species of polychaete worm in the genus Amblosyllis. That body shape is very distinctive.

 

[Shorty Harris]

It's a harmless species of polychaete worm in the genus Amblosyllis. That body shape is very distinctive.

Thanks for the ID! Glad to hear it's harmless. I have not seen it since the night I shot the photo.

 

[redmage]

What is this?

What is this?

I have this growing on my live rock can anyone tell me what this is?

 

[nanoreef heaven]

Can you describe it. Kind of hard to see clearly.

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

 

[redmage]

it is brown and looks like a fan... it has a main trunk with little branches it is about 1 cm to 2 cm tall.

I really need to get a better camera.

 

[nanoreef heaven]

Hmmm. I thought it look like hair algae but u said it has a trunk. If you can get some better pics that could help someone identify it.

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

 

[JohannesFTL]

Can anyone id these? First time I noticed them is this morning and I'm on my way to work right now so couldn't read through all this.

 

[cloak]

Can anyone id these? First time I noticed them is this morning and I'm on my way to work right now so couldn't read through all this.

Acoel flatworm. (Amphiscolops)

 

[JohannesFTL]

Being a compete newbie, are those good, bad, or indifferent? Should I try and get rid of them? There were about 6 on the glass.

 

[Tetra84]

can anyone tell me what this is? its kinda like a little shrimp critter that came in on a clam i bought.. now there are a bunch of them crawling all over the rocks and around the sandbed. They seem to be getting bigger.. the biggest i found was about .25". head is on the left with some small antenna. Good or Bad?

 

[Tetra84]

double post.. sorry

 

[nanoreef heaven]

amphipod. good fish food.

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

 

[cloak]

Being a compete newbie, are those good, bad, or indifferent? Should I try and get rid of them? There were about 6 on the glass.

Certain flatworms can become quite a nuisance, but I think the one you have is actually harmlees. Keep in mind though, these things can multiply like rabbits and become a real eyesore. Just to be safe, I would start siphoning them out as soon as possible. JMO.

Check this out.

http://www.melevsreef.com/flatworms.html

 

[pinchiegringo]

Can someone ID this lil guy?

Tia

 

[cloak]

It looks like a majano anemone. (bad)

http://melevsreef.com/id/majano.html

 

[MortenB]

Stomatella?

Stomatella?

Ok, so thanks for the Stomatella tip earlier. I think that may be correct. Here is a much better picture; anyone able to confirm this is a Stomatella Snail? It's definitely a cool looking little creature.

Many thanks, M

 

[SushiGirl]

Yes, it's a Stomatella.