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I am not sure what otto this is. This is the second time I have seen this particular otto. Any help would be great.
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From the picture. All i can say is that you have a mixed bag! Pictures from outside the bag perhaps?

This, maybe?

Just out of curiosity, why is Otocinclus sp. 3 considered separate from Otocinclus hoppei in the CatElog?

Are these same species? Found these sold at aquabid
http://www.aquabid.com/uploads/fwcatfish1111194939.jpg

No, these are .

I was thinking Otocinclus macrospilus. I will try and get some better pictures.

Mike_Noren wrote:Just out of curiosity, why is Otocinclus sp. 3 considered separate from Otocinclus hoppei in the CatElog?

<em>O. hoppei</em> didn't exist when I added them to the Cat-eLog, now the images are not the greatest and I am not 100% they ARE .

I could be persuaded.

Jools

Oh, I wouldn't want that on my conscience...

As far as I can see Otocinclus sp. 3 fits Schaeffers description and photos of hoppei perfectly, but without having the fish in my hand and looking at it under a microscope I wouldn't dare say for sure.

No, the question was honest - I'm still trying to develop a feel for the species of Otocinclus, and as I would've guessed sp. 3 was hoppei, so I was curious what character suggested it wasn't.

Mike_Noren wrote: As far as I can see Otocinclus sp. 3 fits Schaeffers description and photos of hoppei perfectly, but without having the fish in my hand and looking at it under a microscope I wouldn't dare say for sure.

IMHO..

The Hoppeï and the sp3 are different as you can see on the pictures, the Hoppeïs have next to no spots on the head, the sp. 3 has dark spots on the head, top and top-side.





I just got these 3, handpicked from a tank full of 3 species of otos.. but what are they? Otocinclus mariae, macrospilus, sp3 or??