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Unread 01/07/2018, 10:58 AM   #6201
AlSimmons
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Is it hard or soft? It might be a calcareous sponge of some type or perhaps the remnants of some type of macro algae. Also, exactly what color is it? It looks bone white, but it's kind of hard to tell with the blues on.


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Unread 01/07/2018, 12:32 PM   #6202
101010
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I checked on the internet but probably it's not the worm you mentioned. Moreover my tank it's running for last 3 months without any snails or fish, so I doubt this can be Fulgida worm.

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Unread 01/07/2018, 01:51 PM   #6203
Andi76
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Originally Posted by AlSimmons View Post
Is it hard or soft? It might be a calcareous sponge of some type or perhaps the remnants of some type of macro algae. Also, exactly what color is it? It looks bone white, but it's kind of hard to tell with the blues on.


Thank you.

It is bone white, moves with flow a bit. I have removed the blues and added another two images, the second is a different one I have noticed?




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Unread 01/07/2018, 01:57 PM   #6204
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Thank you.

It is bone white, moves with flow a bit. I have removed the blues and added another two images, the second is a different one I have noticed?




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I must add that my tank is just clearing after the live sand so there is a bit of silt/sand that has settled on the rocks so it may not naturally be as white as it seems?


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Unread 01/07/2018, 02:04 PM   #6205
AlSimmons
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From these last two pictures it just looks like a sponge of some sort. In most cases these are harmless, but keep your eye on them just in case.


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Unread 01/07/2018, 02:12 PM   #6206
Andi76
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From these last two pictures it just looks like a sponge of some sort. In most cases these are harmless, but keep your eye on them just in case.


Thank you. Is there anything in particular I should be looking for that should ring alarm bells?


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Unread 01/07/2018, 02:25 PM   #6207
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Some sponges have been known to smother corals over time, but being that your tank is new you should be ok for now. When you start adding corals to the tank then you'll need to watch out. One good thing about sponges though is they can be real easy to "thin out" so to say. The ones you have look like they would be real easy to manage.


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Unread 01/09/2018, 12:02 AM   #6208
101010
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If I'm not mistaken (and for your sake I hope I am) that sounds like a Fulgida worm.

They're meat eating worms that secret a mucous around their prey which seems to paralyze/suffocate them, then eat them.

They look kind of like a bristle worm, but have a flatter/rounded shovel kind of head, and they retract crazy fast for changes in light or if they feel anything bumped/water movement near them.

They tend to only like to come out when it's dark unless they're starving.

If you've noticed some of your CUC shells empty and a snot blob nearby, that's likely your culprit.

I got a rock that had a ton of them and didn't realize. I've been trapping and removing them now for about a month. I think I've removed about 40 so far.

If you need help making a trap let me know, but the design floating around online using PVC pipe, pantyhose and scallops for bait has been the most effective for me.

They will kill your CUC snails and any clams you have in the tank. I have seen them eat a bristle worm or two as well.

edit: also forgot to mention they aren't nearly as sensitive to red light. I ended up buying some red LED flashlights in order to hunt them at night, it made it much easier.
On the second thought, I cannot completely disagree on the identification. Thought the tank has been running without fish for last 2-3 months but do feed my corals occasionally and can see bristleworms thriving.
I'm a bit worried at this point as there are at least 5-6 such worms that I can find with only red lights on and expect a lot more to be hiding. The largest I can see is hardly 2 inch long and around 1mm thick, probably the only way to catch them would be something like a planaria trap that we use in Freshwater tanks.
Here's a recent pic, probably this will help in positive identification.

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Unread 01/09/2018, 08:44 AM   #6209
alcimedes
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On the second thought, I cannot completely disagree on the identification. Thought the tank has been running without fish for last 2-3 months but do feed my corals occasionally and can see bristleworms thriving.
I'm a bit worried at this point as there are at least 5-6 such worms that I can find with only red lights on and expect a lot more to be hiding. The largest I can see is hardly 2 inch long and around 1mm thick, probably the only way to catch them would be something like a planaria trap that we use in Freshwater tanks.
Here's a recent pic, probably this will help in positive identification.

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So i'm not sure what that worm is, but Fulgida worms don't have antenna on their heads.

That looks like a eunice worm (not the bobbit in particular, but likely a predator if it has antenna)

I'd remove that sucker as well. Scallops in a PVC pipe with pantyhose works pretty well for Fulgida worms, might work for other predatory worms as well, but you might need to cycle through bait types until you find what it likes.


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Unread 01/09/2018, 11:01 AM   #6210
AlSimmons
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It looks like a Dorvilleidae worm IMO. (harmless)

https://www.lionfishlair.com/hitchhikers-guide/


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Unread 01/09/2018, 06:34 PM   #6211
alcimedes
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It looks like a Dorvilleidae worm IMO. (harmless)

https://www.lionfishlair.com/hitchhikers-guide/
That's cool, I had no idea there was a 'bristleworm' (this guy) and the 'common bristleworm' (the ones I've seen before)

There are so many critters in this hobby it's mind blowing.

Does your worm eat like this one?

https://www.youtube.com/watch?v=Ns0nrU8Y2xg


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Unread 01/10/2018, 04:43 AM   #6212
101010
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That's cool, I had no idea there was a 'bristleworm' (this guy) and the 'common bristleworm' (the ones I've seen before)

There are so many critters in this hobby it's mind blowing.

Does your worm eat like this one?

https://www.youtube.com/watch?v=Ns0nrU8Y2xg
I guess this is it.

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Unread 01/10/2018, 05:01 AM   #6213
101010
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Originally Posted by alcimedes View Post
That's cool, I had no idea there was a 'bristleworm' (this guy) and the 'common bristleworm' (the ones I've seen before)

There are so many critters in this hobby it's mind blowing.

Does your worm eat like this one?

https://www.youtube.com/watch?v=Ns0nrU8Y2xg
Thanks for all your input guys, especially alcimedea and ALSimmons.It's a relief that this isn't one of the" not so wanted type of worm".

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Unread 01/10/2018, 09:17 AM   #6214
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These just showed up on the glass the last 2 weeks or so. They are small but spreading relatively quickly. They move, so I thought they might be pods at first, but they only move with the water flow, they are attached. I know the pictures aren't great but it's the best my phone could do.

3.jpg2.jpg1.jpg


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Unread 01/10/2018, 10:37 AM   #6215
AlSimmons
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It's kind of hard to tell from those pictures, but they might Hydrozoans.


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Unread 01/10/2018, 11:27 AM   #6216
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Should I do something about them at this stage?


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Unread 01/10/2018, 11:42 AM   #6217
AlSimmons
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If that is indeed what they are I wouldn't worry about them too much. (harmless filter feeders) Being that they are on the glass though they should be real easy to remove with a Mag-Float or something similar. Just do this right before your next water change though.



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Unread 01/10/2018, 01:53 PM   #6218
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will do, thanks.


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Unread 01/14/2018, 10:30 PM   #6219
LReefer
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unidentified critter

Just set-up my new tank with live rock and I found this little guy. His he a friendly or should I be concerned. Currently in my second week cycle.

Thanks again for the help!


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Unread 01/15/2018, 06:46 AM   #6220
taricha
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Just set-up my new tank with live rock and I found this little guy. His he a friendly...
Stomatella snail. Awesome.
https://www.lionfishlair.com/hitchhikers-guide/


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Unread 01/15/2018, 11:21 AM   #6221
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this is great to hear! thanks for the link on hitchhikers guide.


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Unread 01/15/2018, 12:05 PM   #6222
taricha
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this is great to hear! thanks for the link on hitchhikers guide.
It's so useful.
We should have a contest to see if anyone can document and photograph every hitchhiker on this list in their tanks.
Call it the Pokemon Hitchhiker Award (gotta catch em all!)


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Unread 01/16/2018, 04:54 PM   #6223
Bulldog39
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What is this white stringy fuzzy stuff?

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Unread 01/17/2018, 06:58 AM   #6224
Ron Reefman
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I'm not 100% sure, but I think it's a sponge and it shouldn't become an issue. 99% of all sponges that will even survive in your tank (95% of them won't) are good for the system as they are filter feeders.


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Unread 01/17/2018, 04:36 PM   #6225
Pandagobyguy
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Any idea what this is? Started from sand bed and only grows in shade. It seems to outcompete cyano (obviously)

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