I noticed some of my Zoas not looking happy one day. Then within 2 days they started turning gray, and seem to be dieing. I checked my water parameters, all are fine. I am cleaning them off with a turkey baster, but otherwise have no clue.
Pictures please"¦
Please post all the number for the water parameters:
Alk, Mg, Ca, PO4, NO3, etc"¦
Is that a new addition? Did you dip?
Tell us about your system, please"¦
That's probably bacterial infection.
If it's smelling rotten please cut the gray part and discard.
Dip the rest in Lugol's soution:
8-10 oz. of tank water, 3-5 drops of Lugol's solution for 5 minutes.
Rinse the polyps off in another bowl with tank water before return it to the system.
Watch for 24 ours and repeat the dipping if the infection progress until t's healed, cutting the rotten away and dipping.
Good luck and keep us posted!!
Grandis.