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

[Ron Reefman]

If by move, you mean move from one spot to another and not just move back and forth in the flow, then I'd say you have some kind of an anemone. There are some rock flower anemones that have intricate tentacles like that. And they do start life quite small. I have 2 adults that mated and now there are 5 very tiny baby anemones on the near by rocks.

 

[MCormier]

If by move, you mean move from one spot to another and not just move back and forth in the flow, then I'd say you have some kind of an anemone. There are some rock flower anemones that have intricate tentacles like that. And they do start life quite small. I have 2 adults that mated and now there are 5 very tiny baby anemones on the near by rocks.

Yeah, move from one spot to another. Likes to move a lot too. Doesn't seem to be bothering anything. Just wanted to ask for an ID in case it's harmful. Thanks!

 

[gareth.hubbarde]

Got this on a rock with zoas. Didn't really notice it until the blues were on at night. Any ideas what it is please?

Sent from my SM-A520F using Tapatalk

 

[nfrench2100]

Looks like a sponge


Sent from my iPhone using Tapatalk

 

[gareth.hubbarde]

Looks like a sponge


Sent from my iPhone using Tapatalk

That was my thinking, do they grow/move? How big would it grow? Does it require feeding?

Sent from my SM-A520F using Tapatalk

 

[deputydawg88]

That was my thinking, do they grow/move? How big would it grow? Does it require feeding?

Sent from my SM-A520F using Tapatalk

They usually pop up in new tanks. It doesn't require feeding as it's already feeding on particulate matter in the tank, they're filter feeders. Sponges come and go, I've got a few squishy sponges on an arch in my live rock.

 

[brianbrainstein]

Are these feather dusters? They are just hanging in my sump

Sent from my iPhone using Tapatalk

 

[nanoreef heaven]

Some pics of a hitchhiker anemone that came in on a mariculture a while back, anyone know what it is? Last pic is semi closed for a better view of its foot.

Sent from my SAMSUNG-SM-G890A using Tapatalk

Possibly "Anthopleura"?

Sent from my SM-G935T using Tapatalk

 

[gareth.hubbarde]

What's this?, noticed it today on rock. Looks like a tiny star fish.

Sent from my SM-A520F using Tapatalk

 

[mrpergo]

its an asterina star, you'll get a boat load of them. I find them sucking on corals sometimes so I vacuum the little buggers up when I water change

 

[Smokey Stover]

Snail ID ?

Snail ID ?

This just appeared on the glass of my coral holding/observation tank. The Zoas in there aren't looking so good after Irma. So this little thing may be seeking greener pastures. It's very small about 1/16th inch, But when you see one there must be more you can't see. I checked LL and none like this there.



This nice little Stomatella was in there too. Unfortunatley neither survived the capture and photo shoot.

 

[allendehl]

Just got new rock from TBS and they look amazing. Can you help me I'd al the stuff that came attached to it please? Several pics attached.
The creature I am holding is super soft and spits water.

Sent from my SAMSUNG-SM-N910A using Tapatalk

 

[allendehl]

One more.

Sent from my SAMSUNG-SM-N910A using Tapatalk

 

[jlmawp]

Super jealous of your rock. That is some awesome-looking stuff.

Not 100% sure about anything except that the green plant is a strain of calurpa. Has a tendency to get out of hand quickly.

 

[allendehl]

Help IDing this please?

Help IDing this please?

This folk went for a walk last night around my new LR. I checked in the TBS website and it looks a lot like a Whelk, which is drills through some of the other critter's shells.

Am I right?...should I still leave it in my sump?...any benefit from it?

Thanks!

 

[allendehl]

This folk went for a walk last night around my new LR. I checked in the TBS website and it looks a lot like a Whelk, which is drills through some of the other critter's shells.

Am I right?...should I still leave it in my sump?...any benefit from it?

Thanks!

I'll answer my own question for future references. This seems to be a whelk, there is a great detailed explanation on how to tell a Whelk from a Nassarius in this link: http://melevsreef.com/whelk-versus-nassarius

 

[allendehl]

Can you help me ID these purple fine hair on my rock and the round transparent "something" that showed up on my glass? Good or bad??

Thanks!

 

[reef cuber]

Found a hitchhiker and need some help IDing. Thanks!

I hope the pics attached.

What about a sea cucumber?

 

[Cpiotraczk]

Are these mysis?

Are these mysis?

Noticed these little guys moving around along the glass in my crushed coral. I think they were hitchhikers but I would like a positive I'd. They are small and difficult to photo. I was unable to upload the movie because of the format so i uploaded photo to my YouTube. https://youtu.be/P8Wrhli-DZI

Just want to make sure these little fast buggers are not a threat.

Chris

 

[bertoni]

Those look more like amphipods to me.