weird worm on my oebt
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Old 03-13-2012, 06:39 AM   #1
shrimpster
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weird worm on my oebt


Ok so I was just looking at my quarantine/transition tank and I see what looks like a broken antennae and then it moves all weird. Then I realize it's extra and the wrong color. Looks like some kind of nematode type of worm embedded itself into the rostrum on one of my oebt's.

I think, "I need some panacur only it's 11pm." So I get out some tweezers and start following her around. Luckily she keeps heading up into the water lettuce and the brighter light. I keep making attempts with my wifes' fine tweezers while coraling/distracting with another pair I normally feed with. No success.

About to give up for fear of stressing her out too much, I decide a little stress is better than worm in brain/gills. I make a couple more attempts as she moves into the light and I can see it flipping around perfectly. I make a grab and she actually flinches and darts away. I check the tweezers: nothing. I check the shrimp: still there (including antennae). I make one more good try and she reacts the same. I check the tweezers and this time I see a white worm sticking out the end of my tweezers.

SUCCESS!!!


She immediately went from the random near-the-surface swimming around activity to the bottom and feeding and is still there as I finish this.

Hopefully it wasn't a planaria and the head is still buried in there somewhere.

Last edited by shrimpster; 03-13-2012 at 06:55 AM.. Reason: oops
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Old 03-13-2012, 07:07 AM   #2
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I am glad things seem like they went well! I'd probably still get that panacur stuff to make sure there's no other planaria around.
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Old 03-13-2012, 07:15 AM   #3
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I do see occasional planaria on the glass, but only in one area. I have been thinking about dosing for them for awhile, but now my ass has officially been kicked. I will find some tomorrow at a lps.
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Old 03-13-2012, 05:45 PM   #4
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When this happened to one of my tiger shrimps. I tried to remove the worm the same way. I only was able to dislodge part of it. Ultimately the shrimp died since I think the worm was inside of it :\
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Old 03-13-2012, 07:33 PM   #5
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wow, you must have quick reflexes mister. glad you got the bugger.
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Old 03-14-2012, 03:12 AM   #6
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I indeed only got a piece of it. I looked her over this morning and watched as another oebt came along and actually tried to pick the worm off. The worm recoiled and as the shrimp (cleaner) tried to grab it again the worm retreated all the way back into the rostrum area.

I don't think it is planaria. It is too much like a whip and can retract itself almost like a tube worm.

I dosed the tank w/.1g/gal of fenbendazole and shrimp seem fine so far. I read conflicting information about whether it would work on worms other than planaria.

I will try to get a picture later, but unless she is in the perfect light and perfect angle, it is not visible
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Old 03-14-2012, 04:14 AM   #7
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I think you have the same thing that was in my tiger shrimp as well. Ultimately I also dosed my tank with fenbendazole and noticed the worm dissolved away instantly (I watched for ~30mins). Afterwards the shrimp pretty much stopped moving altogether, and died shortly afterwards.

It could be that the worm isn't burrowed as deeply or something. But I think the shrimp might die. It was acting funny as well you said?
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Old 03-14-2012, 01:35 PM   #8
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For an external parasite like this, you might have luck with a salt dip. I'm not sure about concentrations and such. Is it a horsehair worm? The description and behavior both match. I'd get the affected shrimp out of the tank, at the very least. It's hard to tell whether the species in question has a multiple host life cycle or if it can reproduce in your tank.
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Old 03-15-2012, 06:45 AM   #9
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Quote:
Originally Posted by diwu13 View Post
I think you have the same thing that was in my tiger shrimp as well. Ultimately I also dosed my tank with fenbendazole and noticed the worm dissolved away instantly (I watched for ~30mins). Afterwards the shrimp pretty much stopped moving altogether, and died shortly afterwards.

It could be that the worm isn't burrowed as deeply or something. But I think the shrimp might die. It was acting funny as well you said?
Unfortunately, the worm is still there 24hrs after 1st dosing. The odd swimming behavior hasn't returned and she has been acting/foraging normally otherwise.

Quote:
Originally Posted by jasonpatterson View Post
For an external parasite like this, you might have luck with a salt dip. I'm not sure about concentrations and such. Is it a horsehair worm? The description and behavior both match. I'd get the affected shrimp out of the tank, at the very least. It's hard to tell whether the species in question has a multiple host life cycle or if it can reproduce in your tank.
I will try the salt dip after 72 hrs. I want to try and let the fendenbendazole work. I will put her in a small tank with nothing else after thursday. I haven't seen it on any other shrimps so far.
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Old 03-15-2012, 11:19 AM   #10
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So you treated the entire tank with dewormer? In my case I took the female out, put it in a little container that was floating in the main tank, and treated that container. So she got something like 2x the normal amount.
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Old 03-15-2012, 02:00 PM   #11
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Quote:
Originally Posted by shrimpster View Post
I will try the salt dip after 72 hrs. I want to try and let the fendenbendazole work. I will put her in a small tank with nothing else after thursday. I haven't seen it on any other shrimps so far.
If you treated the whole tank, be sure to pull any nerite snails out or they'll die.
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Old 03-17-2012, 02:20 AM   #12
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So it has been 72 hrs. and I'm gonna do a h20 change and then a salt dip on the infected individual tomorrow.

It doesn't look like anything I have been able to find information on yet. The most likely culprit at this time based on anecdotal evidence is a horsehair worm of some sort.

Here's some pictures. Maybe someone else has seen this.
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Old 03-17-2012, 05:03 AM   #13
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WOW! That is EXACTLY what the worm looked like on my tiger shrimp. From what I looked up it was a horsehair worm as well. Never did find out exactly what it was, but I believe it will be fatal
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Old 03-17-2012, 05:04 AM   #14
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By the way, I would take that OEBT out right away and put it in a quarrentine tank. If you don't have that just float a small plastic container in your tank so the parameters stay the same.

Just as a precaution, not sure if bits of the worm that break off can infect other shrimp.
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Old 03-17-2012, 06:02 AM   #15
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yes take that oebt out of that tank somewhere i heard that those worms eat the shrimp from the inside out not sur i remember where i saw that though
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