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Just got three of these from my LFS today, thinking they were Otos, but now I'm worried that they might be Chinese Algae Eaters or something. Here's some pictures, if you can't tell from these or its iffy then please tell me and I'll try to get some more:







Here's a top view (he's on the leaf)

Definitely an Oto, definitely not a Chinese Algae Eater.

Regular oto.

Good, I'm already getting attached to them. Thanks for your help.

You have two species there.

first picture shows what I think is the other pics are of

you can better add three more, since these fish like each others company