Two branch hammer, one head open, one contracted

[DeNovice]

Can someone help me narrow down possible causes for this? It’s been this way for about 4 days. It isn’t lighting and I have nothing to pick at it. Just conducted a water change last night and maybe it’s helped a touch? Can’t really be sure. Flow is mild. Could it be a pest or disease? (Sorry for the low quality pics)

 

[vetteguy53081]

Best assurance of pest issue is to dip the coral and inspect base and bottom of plug for any bugs or eggs. You can also give it GENTLE bursts from a turkey baster and see if anything dislodges.
Temp 77-79
Mag 1300
Alk 8-9
Ca 440
Nitrate < .4
Salinity 1.025
Moderate light and water flow

 

[DeNovice]

Thanks, is that the most likely scenario in your opinion? A pest?

 

[DarthSimon]

I was thinking something was aggravating it. You can try giving it a coral dip.