Montipora Skin tissue turning black

[Andrews_aquarium]

My recently purchased Seasons Greetings Montipora has some for of TN. Ive had SPS STN & RTN before but this seems different. There are multiple other caps and Montis surrounding this one with no issue and signs of growth with good color so im wondering if this is some sort of disease? All Parameters are great at the moment and there's been no changes to the tank since its been added. The frag has been in the tank for 10 days. All other Montipora frags purchased at the same time are doing great. Sorry for bad photos :-(

Parameters:
PH:8.3
Alk:8.4
CA:410
MG:1400

 

[The guppy guru]

My recently purchased Seasons Greetings Montipora has some for of TN. Ive had SPS STN & RTN before but this seems different. There are multiple other caps and Montis surrounding this one with no issue and signs of growth with good color so im wondering if this is some sort of disease? All Parameters are great at the moment and there's been no changes to the tank since its been added. The frag has been in the tank for 10 days. All other Montipora frags purchased at the same time are doing great. Sorry for bad photos :-(

Parameters:
PH:8.3
Alk:8.4
CA:410
MG:1400

This looks to be some kind of infection, hard to tell what it is.

 

[The guppy guru]

yet again some corals just die for reasons we don't fully understand

 

[The guppy guru]

try moving it to a calmer place in your system if you a,ready are doing this then instead put it as high as possible in your system

 

[Cell]

It's really hard to tell what's going on with the blue heavy pics. I'd probably start with an iodine dip and moving it away from other corals to eliminate a chemical warfare issue or something potentially spreading to nearby corals.

 

[Cole.mormon]

Try to get calc up to 600

 

[Cell]

Huh?

 

[The guppy guru]

It's really hard to tell what's going on with the blue heavy pics. I'd probably start with an iodine dip and moving it away from other corals to eliminate a chemical warfare issue or something potentially spreading to nearby corals.

Yes what you said I don't specialize in sps corals. I'll keep it to the Professionals

 

[Cole.mormon]

Try an iodine dip or an antibacterial dip

 

[Cole.mormon]

Huh?

Calcium

 

[Cell]

Not seeing the benefit of dosing calc from 410 to 600 when 1 coral is doing poor and rest are fine or ever really.

 

[Cole.mormon]

Higher calc is better in moderation most aquariums keep calc at 800

 

[Cell]

Maybe in TX, because everything's bigger etc etc....but not elsewhere.

 

[Andrews_aquarium]

Thanks for the replies, I think ill keep my calcium where its at as all other SPS are doing great. I found my yellow filter so this photo might be better:

 

[Cole.mormon]

Prob a po4 or nutrient problem

 

[Cole.mormon]

What r ur phosphates and nitrates

 

[Andrews_aquarium]

Phos: .08
No3: 2.5

 

[The guppy guru]

Maybe in TX, because everything's bigger etc etc....but not elsewhere.

Actually I keep my calcium between 750-760. And my tank is only 50 gallons

 

[The guppy guru]

Phos: .08
No3: 2.5

Wow I wish I had those levels my phosphate is at 0.25ppm and my nitrate is at 45ppm

 

[Cole.mormon]

Try nitrate at 5