Who Gives A Fish Forums

I'm starting to think you're right about having two females. The bigger one's still on the warpath, nipping at the other's fins and causing a right old mess. Would introducing a definite male calm things down or am I better off swapping it for a male at the shop?

Quick snap of the pair - female nipped at the male right after this.

The female's been taking charge so far, slightly bigger and giving the male a hard time. Aware of the potential aggression, already looking into a separate breeding tank just in case.

Got my replacement male today.

Kribensis by Allan.Jones, on Flickr

I've recently picked up a pair of Kribs, but unfortunately, one didn't make it - the shop owner is kindly replacing it for me. They were sold to me as a probable male and female pair.

The one I've got left, I'm thinking it's probably the female.

I had to rehome my breeding Kribs, they became super aggressive and started nipping my Keyhole's fins to shreds - the Kribs were tiny compared to the Keyholes.