PlanetCatfish.com

Can anyone help me sex these fish?

Fish 1: Fish 2: Fish 3: I got 5 fish, but i cant get the last too out from the caves, so i suspect them to be males.
It unfortunately looks like i got 5 males, so i feel kinda sad, when the seller said it was 2.3

Can females really have such a hairy fin?

I only see three males clearly. It's not only the fins but also the had shape.
Sorry, but maybe the other two are female.