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Otocinclus cocama parasite or organ?


Tyler
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So my otocinclus have the weird tube like things near their anus, right in the middle of the fish where the tips of the ventral fins would meet if you drew a lime straight across. I'm pretty sure it's right next to where the excretions come out. Is this part of the otocinclus anatomy or is it a parasite? Also is API general cure safe for eggs in the tank and couple day old fry? Also will general cure kill the other micro organisms that my fry use as food? Fry are of another fish 

Screenshot_20210129-171851_opt.png.jpg

Edited by Tyler
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I've been trying to get a look at the underside of my otos to reference the area but they aren't cooperating. I did see a similar question posted in another site http://www.wetwebmedia.com/FWSubWebIndex/otodisf.htm that might be about the same thing. 

if it is something parasitic general cure is what I would try to treat with. I have not heard of GC being unsafe for anything else in the tank and have never noticed any I'll effects from it's use. 

Edited by MAC
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1 minute ago, MAC said:

I've been trying to get a look at the underside of my otos to reference the area but they aren't cooperating. I did see a similar question posted in another site http://www.wetwebmedia.com/FWSubWebIndex/otodisf.htm that might be about the same thing. 

if it is something parasitic general cure would be what I would try to treat with. I have not heard of GC being unsafe for anything else in the tank and have never noticed any I'll effects from it's use. 

I did read through that page they didn't really get a good definitive answer kinda just speculation and said medicate anyway. I appreciate the info on general cure as well as my fry will definitely not survive without all the micro organisms throughout the tank. 

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So I fell down a rabbit hole here with you question. After some shotgun research I think you're looking a a male otos reproductive system.  Male otocinclus catfish have genital papilla with rows of modified denticles (also known as odontoids). All these organs can be seen at the bottom side of otocinclus catfish tail system. This is the location where the body becomes a tail that is specifically twisted.https://www.aquariumnexus.com/otocinclus-catfish-breeding/

I then searched "genital papilla fish" images and I think it looks similar. At least closer to what your picture shows vs pictures I've seen of parasites. 

Maybe that helps? Hope so, my google search history is looking quite odd right now, haha

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Hahaha I can only imagine 🤣 your spouse will think your now into fish porn lmao all jokes aside though that's a great article I do wish they added a photo of the organ next to the paragraph to help the dimwits but I'm going to search and see if I can find something that has a photo for direct reference. I'll use your search term so I know we're looking at the same thing. 

8 minutes ago, MAC said:

So I fell down a rabbit hole here with you question. After some shotgun research I think you're looking a a male otos reproductive system.  Male otocinclus catfish have genital papilla with rows of modified denticles (also known as odontoids). All these organs can be seen at the bottom side of otocinclus catfish tail system. This is the location where the body becomes a tail that is specifically twisted.https://www.aquariumnexus.com/otocinclus-catfish-breeding/

I then searched "genital papilla fish" images and I think it looks similar. At least closer to what your picture shows vs pictures I've seen of parasites. 

Maybe that helps? Hope so, my google search history is looking quite odd right now, haha

 

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