What is this...

[emilyferguson]

This video is not the best but I hope you guys can get a glimpse of the black/dark spots. I have had this coral for around 5 months and it has been thriving. Last week I noticed the small black area forming but looked the next day and could not find it again so I let it go. It is only affecting a small area but does seem to be getting larger. Is this some kind of coral problem or something that is normal?

Parameters are all with in normal range and stable. Tanks has been set up for 5 weeks. I had to quickly change tanks after some equipment malfunctions. All other corals are doing well.

 

[terraincognita]

Videos not playing, try a still photo or upload it to youtube first.

 

[Teen reefer]

The video won’t play

 

[Jedi1199]

I can't help with the ID, but I did get the video to play.

 

[emilyferguson]

This video is not the best but I hope you guys can get a glimpse of the black/dark spots. I have had this coral for around 5 months and it has been thriving. Last week I noticed the small black area forming but looked the next day and could not find it again so I let it go. It is only affecting a small area but does seem to be getting larger. Is this some kind of coral problem or something that is normal?

Parameters are all with in normal range and stable. Tanks has been set up for 5 weeks. I had to quickly change tanks after some equipment malfunctions. All other corals are doing well.

 

[samnaz]

Maybe a barnacle?

 

[samnaz]

Hard to tell from the photo what it is or if it’s cause for concern. I’d keep a close eye on it. You could try shutting the flow off for a sec for a clearer pic?