Oto catfish id?

[Nilsafeller]

Just picked this guy up.. said it's a type of oto... didnt know they could get so large.. this guys about 5.5 inches in length

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[fishhead0103666]

Page not found.
However I reckon its a hypoptopoma gulare or one of the hypoptopoma s. Can we get another picture comrade?

 

[Fishman Dave]

Need a photo as I don't know of any genera of oto (hypoptopotaminae) that get to 5.5" and still resemble an ottocinclus. Only ones are pareiorhaphis and they look more like plecs.