Lost tissue on sps tip

[An ngo]

I have milli over 2 months and it pretty healthy until few days ago, the tip loat some tissue and polyps don't extend as it usued be. My parameter is
Salinity 1.025
Kh 7.9 ( constant)
Nitrate: 4-5 ( last week was below 2)
Phospate: o.01-0.02

 

[Daniel92481]

I wish I could help you here, I’m new to this and interested why SPS tend to bleach, STN, and RTN.

Following...

 

[Gareth elliott]

Do you have calcium and magnesium measurements?

And what par is it getting?
Anything that could be taking nibbles?

 

[An ngo]

My calcium is 450 and really stable. I sure with you there is nothing snipped my sps. Par at that area is around 200-250. I can see the bot of my mille still pretty healthy, but lot some tissue on top.

 

[Gareth elliott]

Did you recently do a heavy water change or change out carbon? Perhaps there is suddenly higher light penetration?

 

[BoomCorals]

If the frag in the pic is 2 months old then it hasn’t been healthy. You would have seen encrusting growth at the base by now. It might be a sick frag? Did you check for pests? You might want to move it into more light and flow.

 

[An ngo]

If the frag in the pic is 2 months old then it hasn’t been healthy. You would have seen encrusting growth at the base by now. It might be a sick frag? Did you check for pests? You might want to move it into more light and flow.

Should I take out and dip into coral RX then move it up to higher light ??

 

[BoomCorals]

Should I take out and dip into coral RX then move it up to higher light ??

If it were me that’s what I’d try.

 

[An ngo]

Ok I will try to do it and see how it is going. Thanks for your help.

 

[Scorpius]

It's not all doom and gloom. I see some polyp extension. That's a good sign!