Unhappy Coral

[Bkatz1]

Before anything here are my parameters...

Water temp: 76°F - 77°F
pH level: 8.1 to 8.3
Alk: 9 dKH
Salinity: 1.025
Nitrate: 5 -10
Ammonia: 0
Phosphate: < .04 - .06
Magnesium: 1300-1350
Calcium: 400-450

I added 3 new leathers 2 weeks ago. All but one have opened and seem to be acclimating well. I've heard of some taking a long time, others say something is bothering it. All are in moderate flow with 100+ par (60" lumi light pro at about 50%). Am I missing something? I have attached photos below. Any help or experience is welcome thank you.

Trouble Coral

Happy Corals and Anemone

 

[DSC reef]

Honestly, that coral doesn't look bad, Id just give it time. I know its frustrating but thats reefing. Everything else looks great and your parameters are good. You have a really nice tank.

 

[tbrown]

Do you use carbon? Some leathers have been reported to release toxins into the water column as a form of coral warfare. I'd say it's unlikely if only one coral is being affected unless it's the closest to the offending coral.

 

[Bkatz1]

Do you use carbon? Some leathers have been reported to release toxins into the water column as a form of coral warfare. I'd say it's unlikely if only one coral is being affected unless it's the closest to the offending coral.

I do have carbon in the sump, yes.

 

[Mr. Mojo Rising]

I agree it looks fine to me, the polyps are not out but thats it. I would leave it alone personally

 

[underground_corals]

looks fine to me, give it a few days and hopefully it will start opening up again!

 

[BryanM]

Give it time, it also looks fine to me as well.

I put in a new toadstool once that took 6 weeks to acclimate and open up.