Got a hitchhiker or unknown critter?? Check here for an ID

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Sapper577

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Any ideas ? Been in the salt a long time and haven't seen this before. Maybe a type of sponge ?? It is stationary and acts like a filter feeder.
20150827_172805.jpg
 

Tahoe61

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Colonial Tunicates, harmless.
 

Cookedsushi

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Can someone confirm that this a bristle worm? I turned off all the pumps today to feed and do a water change and this came out of a piece of live rock. Never saw it before. Thanks.
 

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Helenareefer

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Looks like vermetid snails they put out a slimy string when food or sand stirred up in the water and they will multiply quickly and they suck you have to smash the base and tube completely or cover the hole with super glue to kill them or there will be thousands in the tank


I have what sounds like you described to a T. They don't look like that picture though. They are very small and look like little growths on the rock. I saw what looked like one of my girlfriends hair hanging from one, then I realized it was coming from the little growth.
 

justaDutchguy

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ImageUploadedByREEF2REEF1440791793.401929.jpg


Here's one of my sponges, it's hard to imagine but that bigger "pipe", once looked like those on your picture. And yes i know, aptaisia, filefish will be picked up on monday.
 

TerraCaelus

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ImageUploadedByREEF2REEF1440891864.686446.jpg



A new hitchhiker for you guys! Sorry for iPhone quality.

Also question: About 3 weeks ago I started using pre-mixed saltwater from my LFS and now I have all these new creatures. Is there a correlation or is it because my tank is only about 5 months old that I am just now starting to see them?
 

jdms2k87

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Found these two living inder my large pagoda, there was clear skin like tunnles on parts of the areas of the coral connected to a blasto frag that had recently been moved nearby and has a few what looks like half eaten head's.
Both corals have been cleaned and dipped

20150829_210541.jpg 20150829_210557.jpg 20150829_210724.jpg
 

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Tahoe61

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^ Look like harmless bristle worms to me. Look at how much you're feeding the tank, available food source dictates population. Too much food, too many bristle worms. They were probably cleaning up an already dying coral.
 

jdms2k87

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Tank is fed moderately..
The blastos were completely healthy till they were moved near the same rock the pagoda rests on and only affected were the "sand tunnles " were running. Pagoda was also dead underneath these sand tunnels wehen cleaned off. Still very healthy.
 

miohippus

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green ting.jpg

what is the green filter feeder on the coralline
 

codyco

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Hello everyone,

Let me start out by saying that I am new to keeping saltwater aquariums, but my partner has some experience. At any rate, we went to a new saltwater aquatics store today and purchased about 5 pounds of live rock needed to finish building up our 15g aquarium.

We noticed on one piece there was a decent amount of marine vegetation which did not concern me; however, we also noticed several tiny brown creatures. They look, to me, like very tiny anemones, but I wanted to post some pictures and see if anyone can tell me for sure what they were. They are reddish-brown in color and about 1/16-1/8 inch in diameter. Any thoughts would be really appreciated. There are several on the plant and now there are about 5-6 sitting on the substrate. I just want to make sure it's nothing that will harm the tank.

After doing some research, I saw that these might possibly be something like a medusa hydroid? The more I research, the more confused I get.

Thanks,

Cody C
 

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Tahoe61

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Aiptasia, not good.

The algae is Halimeda/aka Cactus algae. It requires higher calcium levels and is really nice nice algae if you can keep it alive.

However I would be pretty darn mad if a local fish store sold rock to me that had so many Aiptasia on it.
 

codyco

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Aiptasia, not good.

The algae is Halimeda/aka Cactus algae. It requires higher calcium levels and is really nice nice algae if you can keep it alive.

However I would be pretty darn mad if a local fish store sold rock to me that had so many Aiptasia on it.

Thank you! I do believe thats what they are. The algae looks pretty sad already, so hopefully I can perk it up! In all there are maybe 15 of the Aiptasia. Do these need to be manually removed from the tank? I read that peppermint shrimp and some other creatures will eat them. Has anyone had any success with this or is better to manually remove them?
 
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