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Old 07/07/2020, 09:10 PM   #6426
jmsilhy
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Pix & ID: Critters that come in your rocks: the good and the bad.

Do you guys think this is an asterina starfish?
Itís tiny, about 1/4Ē from tip to tip. Not sure if good or bad, Iíve read many contrarian opinions...




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Old 07/10/2020, 02:55 PM   #6427
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Yes


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Old 09/27/2020, 07:08 PM   #6428
Thornbreaker
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ID?

Came in on some live rock from my LFS I picked up this week. Theres a larger one too, but can't get a good picture.

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Old 09/27/2020, 07:10 PM   #6429
Krchfam
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Aptasia?


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Old 09/28/2020, 07:22 AM   #6430
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Aptasia?


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Thats what I'm afraid of.

Best to just pull the rock since its new?

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Old 09/28/2020, 02:53 PM   #6431
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If you can, yes. PIA to manage once they start to
Spread. So if your clear of them now, do what you can to get it out!


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Old 11/13/2020, 04:39 PM   #6432
chiefifd
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Can anyone ID this Worm looking thing, it's about 3cm long????


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Old 11/29/2020, 03:09 PM   #6433
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ID these please...I think tube worms...but verifying.

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Old 12/05/2020, 11:57 AM   #6434
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Yes- vermetid snails; they can irritate the coral, but mostly harmless in small numbers.


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Old 12/06/2020, 10:49 AM   #6435
Vinny Kreyling
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Get rid of them!!!!!


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Old 12/07/2020, 12:15 PM   #6436
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Get rid of them!!!!!
Know of anyone who has actually done that? Once they're in there, it seems like some are always hanging around somewhere.


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Old 12/08/2020, 12:53 PM   #6437
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Easy when they're on a plug.


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Old 01/06/2021, 12:55 PM   #6438
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ID these please...I think tube worms...but verifying.

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that is a beauty


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Old 01/20/2021, 10:11 PM   #6439
Lerch Knives
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New guest in live rock

Got some new live rock over the weekend and had a guy show up today. Yellow copopod or shrimp like creature, yellow mostly in color and a little over 1/4Ē long with a curved back and long antenna. My guess was a massive copopod (I know Iím spelling that wrong) but I havenít ever seen one this large and he has some fairly pronounced ďhandsĒ that have some white detail If anyone can tell me how to post a video i can show you. So far pics havenít shown any detail

Thanks
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Old 01/21/2021, 08:27 AM   #6440
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Actually it's an Aquilonastra spp. starfish. People have been misidentifiying them for years. A critical difference between the Aquilonastra genus and Asterina genus is the Asterina species cannot reproduce by splitting (fissiparous) like the Aquilonastra species. Here's a monograph on them with pictures of the different species in the genus. From what I've read and seen in my tanks if they are seen on corals they're probably helping the coral get rid of it's old mucus coating which has to be replenished periodicly and I not only consider them beneficial but essential. here's the links:

https://museumsvictoria.com.au/media...ghlin_rowe.pdf

https://www.nature.com/articles/ismej20169


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Old 01/21/2021, 05:52 PM   #6441
Lerch Knives
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Any guesses ? About 1/4Ē long


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Old 01/21/2021, 08:05 PM   #6442
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Another pic


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Old 01/21/2021, 11:55 PM   #6443
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Looks like obviously a big dang amphipod, hadnít seen one that big and was worried it was a bad shrimp Sorry for a annoying question


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Old 01/22/2021, 07:30 AM   #6444
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It's an amphipod, harmless.


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Old Today, 06:01 AM   #6445
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Smile Anyone know what this is?

Hello everyone. I recently bought a mushroom coral on a chunk of live rock. The rock itself has a light blue covering of something that feels like tissue of some sort. It also excretes mucus. Can anyone help me identify this.


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Old Today, 09:28 AM   #6446
Vinny Kreyling
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Looks like a blue sponge to me.


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