PlanetCatfish.com

ia this a pair? the more slender one is always guarding a cave and shasing the other i think its a male but he has no hair, the other is fat and a female fore sure.

Girth alone is not conclusive to determine sex with these. Stout ones can end up being males once they become mature and start growing their odontodes. Slender ones can end up being females once they mature, fatten up, and still be less adorned with odontodes.