Please read

[Paulday]

So one of my corals looks horrible he lost all his fuzzy ness he's not bleaching but don't look good any idea all my parameters r normal. Ammonia o nitrite 0 nitrate less than 5.0 calcium 440 and dkh is 10.

 

[ritter6788]

Post your whole list of parameters. Dosing anything? Using RO/DI water with 0 TDS? Lighting? Filtrarion? Tank age?

 

[Paulday]

Ro/di. O tds. Just checked water changed one week ago. Salinity .025. Lights two primes running 65 percent for 12 hours Age year and a half. Only coral looking bad. Looked great this morning. Dosing Red Sea reef energy Temp 79 degree

 

[Paulday]

Filtration is fifteen gallon sump with grape chalupa. And reef octo nwb150.

 

[eja99]

Salinity? Have you had any temp swings recently?

Could be a pest too. Something eating or picking at the coral. Do you have any fish that nip? Can you see any pests on the coral?

 

[Tahoe61]

What is that coral? A Birds Nest/Seriatopora or Acorpora?