Who Gives A Fish Forums

Thanks, all. Gonna try moving it away from my Frogspawn and spot-feed tonight. Appreciate the help!

Could be flow related. What's your current setup? I had a similar issue with my Torch until I tweaked the powerhead placement. They like moderate, indirect flow. Also, what's your alk sitting at? Hammers can be fussy if it's swinging.


Running two Nero 5s at 40% on opposite ends. Alk is stable ...

My Hammer coral hasn't been extending for about a week now. Water params are good, 0 ammonia, 0 nitrite, 5 nitrate, 8.2 pH, 1.025 salinity. Running a 75-gallon tank with two AI Prime 16HDs, 10-hour light cycle. No recent changes except a water change 5 days ago. Any ideas?

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.