white area on my hydnophora

[ollie51]

my hydnophora all of a sudden has a white area size of a dime crabs seem to be on this area and there seems to be a brown area spreading out from this area should i fresh water dip ? cut it out? its a nice piece its the encrusting type about the size of a softball

 

[kevinpo]

Hello and welcome to Reef Frontiers!
Hydnophora is generally a very hardy coral. Did something (like another coral) fall onto it? I would give it high flow and just keep an eye on it. Are the crabs hermit types that are on it?

Regards,
Kevin

 

[ollie51]

white on my hydro

nothing i know of fell on it crabs are blue leg hermits this piece was a new item 3weeks white spot was not on then but appeared 1-1.5 weeks later small about .5 inch now 1.5 x1.5

 

[dnjan]

I've had that happen when my water got too dirty (nutrients, including organics). Seemed to clear up after I changed my carbon.

 

[ethanriley]

I agree run carbon do a partial water change and it should go away