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

[shelbz]

Hi guys! Cocoworm? Featherduster?

Hi guys! Cocoworm? Featherduster?

Would someone identify this for me? Moving frags around and found 2 of these lil guys!
Thank you!

 

[MillerReef]

Does anyone know what this is? I have a yellow tip hermit that has 2 beige "antennae" about 3/4" long and a small slightly thicker yellowish cylinder in between the antennae about 1/4" long that come out of a tiny hole in the very tip of the hermits shell. They will completely retract into the hole and then venture out and "feel around". I know the picture is not very detailed but did my best. Anybody have any ideas as to what this is and if it's good, bad or indifferent? Thanks.

 

[Syho]

Spionidae worm=good

 

[shelbz]

Super crappy picture. What is this glass-like critter? Aiptasia? Withdraws when I mess with it.

 

[Mike160]

Need some help ID'ing this. TIA

Need some help ID'ing this. TIA

Hey guys, got it on a piece of LR, just seeing if anyone can let me know what it may be. Thanks.

 

[mikey_m2067]

Pretty sure that's a feather duster..

Would someone identify this for me? Moving frags around and found 2 of these lil guys!
Thank you!

 

[Sugar Magnolia]

Hey guys, got it on a piece of LR, just seeing if anyone can let me know what it may be. Thanks.

The pic is way too blurry.

 

[TrenchToast]

just want to clarify... These are amphipods right? (took pictures prior to scraping the algae)

 

[BadgeNC]

Spaghetti worm?

Spaghetti worm?

I have a couple of these near the base of a piece of live rock. I think they are harmless spaghetti worms, but wanted to double-check. The "threads" are really fine and several inches long and seem to "wiggle" around.

 

[Sugar Magnolia]

just want to clarify... These are amphipods right? (took pictures prior to scraping the algae)

Munnid isopods, greal little scavengers.

 

[TrenchToast]

OK heh as long as they are good. My tank is swarming with them and copepods. Mainly because I don't have any fish in it yet. They are still in quarantine.

 

[TrenchToast]

Was looking around my tank last night after the lights went out. Found this little guy that looked a little different from the rest. Any ideas? (I'm guessing a type of shrimp maybe) it's about a 1/8" to 3/16" long


Then there are these things.. (my guess is the beginnings of Fan Worms)


This is another questionable guy.

 

[Moeshi]

The last ones are vermetid snails. Harmless, but can irritate corals if their population gets too dense. Arrow crabs eats them, if they should become a pest.

 

[TrenchToast]

The last ones are vermetid snails. Harmless, but can irritate corals if their population gets too dense. Arrow crabs eats them, if they should become a pest.

Good thing they are only on two small pieces of dry rock that I recently put in.. Tomorrow they come out and get scraped off and down the toilet they go. heh.

 

[TrenchToast]

The last ones are vermetid snails. Harmless, but can irritate corals if their population gets too dense. Arrow crabs eats them, if they should become a pest.

Good thing they are only on two small pieces of dry rock that I recently put in.. Tomorrow they come out and get scraped off and down the toilet they go. heh.

 

[Difrano]

Good thing they are only on two small pieces of dry rock that I recently put in.. Tomorrow they come out and get scraped off and down the toilet they go. heh.

Please don't flush anything dead or alive on toilets, sinks, drainage etc . Is not a way to get rid of unwanted things in this hobby is cruel for the poor thing and if it survives (most of them do) can become an issue for our ecosystem. That's how the lion fish got to Florida waters and now we can't get rid of them and they are destroying our fisheries.

If you have something you don't want try to trade or give it for free there is always somebody out there. If not kill it and bury.

 

[Foley01]

Worm???

Worm???

Any idea what this is...the damsels don't bug it and it dosent bug them. It kind of folds itself inside itself. It lives in a hole on the rock and kind of sifts through the sand. It never fully comes out of the hole

 

[Sugar Magnolia]

Blurry pic. Might be a harmless peanut worm.

 

[TrenchToast]

Please don't flush anything dead or alive on toilets, sinks, drainage etc . Is not a way to get rid of unwanted things in this hobby is cruel for the poor thing and if it survives (most of them do) can become an issue for our ecosystem. That's how the lion fish got to Florida waters and now we can't get rid of them and they are destroying our fisheries.

If you have something you don't want try to trade or give it for free there is always somebody out there. If not kill it and bury.

Ok.... I understand fish and such but these things aren't even snails... I took the rocks out this morning and they are completely hard meaning they are probably some sort of fan worm like I suspected. They were scraped off and ground up with a knife and flushed. Don't get all sentimental on me over a freaking parasite.

 

[homer1475]

Ok.... I understand fish and such but these things aren't even snails... I took the rocks out this morning and they are completely hard meaning they are probably some sort of fan worm like I suspected. They were scraped off and ground up with a knife and flushed. Don't get all sentimental on me over a freaking parasite.

They actually are snails, Vermetid snails to be exact. They build hard tubes and cast a broad "net" to capture food which it pulls back into its tube to eat.