Hammer coral losing tissue

[Nigel35]

Hammer Coral losing some of it's tissue below the head. Some sort of green algae? What steps to remove/treat etc... Pictures are taken at night with the lights turned on.

 

[Idoc]

Bump

 

[tnewell]

Honestly I have this algae too, never messed with the actual polyp of the hammer. Could it be your parameters?

 

[redeyejedi]

How old is tank? Ive noticed your gsp is closed as well.

 

[Chasenm]

The algae isn’t causing flesh recession, it’s just growing where the flesh used to be. My euphyllia will randomly get in a funk and pout for a few days at a time. I usually pull them out and do a heavy iodine dip to make sure there aren’t any open wounds the coral is struggling to repair.

 

[Nigel35]

PM's checked Saturday. Lights had been turned off for a while so that is why the polyps have receded so much... sorry about that.

Ca 420
Magnesium 1275
Nitrate 10
Alk 8
Ph 8.2
Salinity 1.027
phosphate hangs out around 0.25