what is my fish

[tetrapro]

I was given these fish and not sure on what type they are,
i thought they might have been otocinclus catfish but they seem to swim around a lot instead of stuck to things. ( or is this normal? )

 

[Tropheus_calvus]

I think they are a type of barb

 

[Tropheus_calvus]

But I’m not sure

 

[Dallascowboys16]

I was given these fish and not sure on what type they are,
i thought they might have been otocinclus catfish but they seem to swim around a lot instead of stuck to things. ( or is this normal? )

At first I thought juvenile iridescent or columbian shark, but honestly I do not really think that is quite it.