Growth or concern?

[TodaysTrolling]

Noticed this corals getting white, only around the edges. Not sure if this is growth or if I should be concerned.

 

[TodaysTrolling]

Any ideas?

 

[EeyoreIsMySpiritAnimal]

@encrustingacro ?

 

[MoshJosh]

White around the edges can be growth, but that boarder looks a bit wide in proportion to the corals size. Also the visible pores without polys is concerning for recession (IMO). Pictures under white light?

Also, the "crumbly" look to the most distal lower left and upper right corners looks like recession.

 

[vetteguy53081]

Noticed this corals getting white, only around the edges. Not sure if this is growth or if I should be concerned.

That whole portion should have polyps. Assure alk and calcium are in range and that salinity and temp as well as Phosphates are not elevated

 

[TodaysTrolling]

Everything is good. Just had an ICP test result post today. Nothing looks out of whack. Barium is high, already checked that with Randy and he said not to worry too much about it. Everything else looked good as well.

 

[TodaysTrolling]

//lab.atiaquaristik.com/share/f81f36b5dc428f7e1f8e

 

[TodaysTrolling]

Actually, Phosphate is showing 0.02. Not sure how, Dont run a refugium and feed extremely heavy.

 

[encrustingacro]

edges look too thick to be growth in Montipora

 

[TodaysTrolling]

edges look too thick to be growth in Montipora

Think die back? If so, Would it normally start on the edges and work its way inward like that?

 

[encrustingacro]

Think die back? If so, Would it normally start on the edges and work its way inward like that?

honestly not sure; could be, the rest of your colony looks healthy, so might not be that.

 

[TodaysTrolling]

Definitely strange. @Randy Holmes-Farley if you get time could you check my ICP and see if anything sticks out as concerning to you?

 

[TodaysTrolling]

bump

 

[fishyjoes]

What did it look like a few weeks ago? Do you have an older picture to compare?

 

[Reefkeepers Archive]

Looks like RTN or STN, have any aggressive coralsnearby? What are your parameters? Any vermited snails in the system? How old is the tank?

 

[TodaysTrolling]

Looks like RTN or STN, have any aggressive coralsnearby? What are your parameters? Any vermited snails in the system? How old is the tank?

Tank about a year and a half. No other corals close at all. Parameters are above from an ICP. nothing else in tank looking bad. Also, no vermitid snails. Have a torch, zoas, hammer, leathers and some acans all doing great.

 

[TodaysTrolling]

After lights off. Can see some polyps in the white area that are also white?

 

[EeyoreIsMySpiritAnimal]

After lights off. Can see some polyps in the white area that are also white?

No, that's just the polyp skeleton... The white part looks dead.

 

[encrustingacro]

Looks like we can see what is causing the problem now: nudibranchs

 

[TodaysTrolling]

Looks like we can see what is causing the problem now: nudibranchs

Really? Proposed fixes? Surprised honestly. Only have 2 Montipora in the tank. Both have been there for about 2 months. Never got any growth but never had any side effects either.