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I have three oto's but I'm not sure sure which species do I have. Oto 1 & Oto 2 seem to be shoaling or near each other but Oto 3 is always by itself. I think Oto 3 is a different species. Oto 1 & 2 looks like they are macrospilus or hoppei and Oto 3 seems to be vittatus. Kindly correct me if I'm wrong.


Oto 1: Oto 2: Oto 3:

No takers? I now believe that what I have are Otocinclus huaorani. Two males and 1 female.