Did you know fantastic help is an anagram of Planet Catfish? This forum is for those of you with pictures of your catfish who are looking for help identifying them. There are many here to help and a firm ID is the first step towards keeping your catfish in the best conditions.
Without known origin it´s rather unlike to find out which one or two species this are (from the look rather two)
What can be sayed is that they are not O. xakriaba, O. cocama or O. affinis.
Real O. affinis are seldom imported, but often this name is used at many LFS as well as from importers (it`s a cheap fish so they don`t care very much and likely mix look a like species)