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Unread 03/20/2015, 07:55 PM   #1
jlprutz
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lump on ghost shrimp. parasite? please help!

I bought 10 ghost shrimp to help cycle my new tank. Two of them have a lump on the side of their bodies. The lump has a black ring around it and a white center. It seems the lump may in fact have legs but my eyes are not good enough to be sure. I have used ghosts previously when setting up my larger marine tank but i have never seen this before. Anyone know what this could be? I really dont want to start a tank with parasites. Should i separate them? Keep all the shrimp out of the tank? Please help!


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Unread 03/20/2015, 08:10 PM   #2
snorvich
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I would simply use a piece of shrimp from the grocery, ideally in a woman's panty hose sock.


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Unread 03/20/2015, 10:29 PM   #3
ThRoewer
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It's a Bopyrid Isopod, a crustacean shrimp parasite.

See also these threats:
Cleaner Shrimp isopod parasite??
Parasitic Isopod on cleaner shrimp...
What's wrong with my shrimp?


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Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
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Unread 03/20/2015, 10:33 PM   #4
ThRoewer
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Forgot to say you don't need to worry about this being infectious. These Isopods need an intermediate host - a small planktonic copepod, you will hardly find in a fish tank - to complete their lifecycle.


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Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...

Last edited by ThRoewer; 03/20/2015 at 10:36 PM. Reason: posted before finish writing
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