Rainbow mille dying?

[OceanSprayCranberry]

I’ve grew this Mille out from a frag over a year and I noticed some tips dying today. Any tips on what I should do

 

[Uncle99]

Mine did the exact same thing.
No one else affected, just the Mille.
Very strange.

Doesn’t look that bad in the pic though.

Had a red one do the same after 18 months of great growth.

Mille now on my list of things I don’t replace.

No idea why!

100 other corals 3-5 years old still great.

Very strange.

 

[bradreef]

What are tank parameters?

 

[OceanSprayCranberry]

What are tank parameters?

8.5 alk
450 cal
1300 mag
10-15 no3
.05-0.1 po4

 

[OceanSprayCranberry]

Mine did the exact same thing.
No one else affected, just the Mille.
Very strange.

Doesn’t look that bad in the pic though.

Had a red one do the same after 18 months of great growth.

Mille now on my list of things I don’t replace.

No idea why!

100 other corals 3-5 years old still great.

Very strange.

Yea I only have issues with this Mille currently. I can’t even pull it out to dip cause it encrusted a huge part of the aqua scape. Should I frag?

 

[bradreef]

Anything introduced that could have brought bacteria or something. Flow change? Specs are spot on. Water change regularly to replace elements?

 

[OceanSprayCranberry]

Anything introduced that could have brought bacteria or something. Flow change? Specs are spot on. Water change regularly to replace elements?

I haven’t put anything new in for at least 3 months. I’ve been doing 5% wc every week for awhile. Could a fish be nipping it? Like a juv blue tang?

 

[bradreef]

Tang arent common but it def happens. Do the polyps come out at night?

 

[OceanSprayCranberry]

Tang arent common but it def happens. Do the polyps come out at night?

They are fully out right now. Hairy all over

 

[bradreef]

They are fully out right now. Hairy all over

That makes fish picking less likely. No pest observed. I'm stumped?

 

[OceanSprayCranberry]

That makes fish picking less likely. No pest observed. I'm stumped?

would this be considered STN or RTN? I had one tip yesterday that started peeling and today there’s 2.

 

[bradreef]

Rtn if that fast imo.

 

[moosevandyke]

just a thought but red/gray/black bugs? I had gray a bit ago but it was more an irritation and not a lot of polp extension etc. milbiycine did the trick!.

 

[OceanSprayCranberry]

just a thought but red/gray/black bugs? I had gray a bit ago but it was more an irritation and not a lot of polp extension etc. milbiycine did the trick!.

Is there a way to identify what it is? Should I put a sample under microscope

 

[Uncle99]

Yea I only have issues with this Mille currently. I can’t even pull it out to dip cause it encrusted a huge part of the aqua scape. Should I frag?

May just snip those two tips for now….

 

[OceanSprayCranberry]

Snipped them and it just continued down from where I snipped. I pulled the whole colony last night and fragged it up but this morning a bunch of the frags were also dying at the tips or losing blotches of tissue….