Acro turning gray

[jcarlding]

phosphate .38 ppm
Nitrate 4.7 ppm
All other parameters within safe range

with daily 25% water change will it start to recover or is there another problem you think?

 

[coralfishreef]

The grey is skeleton - death.

Is this correct? phosphate .38 ppm

 

[jcarlding]

Ya I left it all alone too long…. Phosphates spiked and I noticed my nopox and alk dosing bottles were empty. Fixed the dosing and I’m doing water changes. All the other frags from this guy are doing fine so I hope I caught in time

 

[ScottB]

Ya I left it all alone too long…. Phosphates spiked and I noticed my nopox and alk dosing bottles were empty. Fixed the dosing and I’m doing water changes. All the other frags from this guy are doing fine so I hope I caught in time

Couple things. Unless the tank is covered in algae, your nitrate are fine where they are. NOPOX removes nitrates MUCH faster than phosphates. Consider a phosphate binder instead. Lanthanum chloride is my favorite, just go really slow with it.

Next, that looks much more like montipora cap to me, not acropora. I would not expect the dead parts of that to recover. It is time to frag that up. While you are at it, I would dip the live pieces in one of the tea tree coral dips and look for very small, delicate, white, snowflake-like creatures, affectionately named monti eating nudibranchs. Just in case.

 

[jcarlding]

Right, definitely Monti Cap. I can’t remember the names to save my life

I’ll check out that lanthanum chloride. I’ll be happy if I can just stop the spread and than see how the living sections recover

thank you!