Brown SPS polyps

[uhupong]

Anyone know what cause SPS to have brown polyps ?

SPS color is ok but has full extend 'brown' polyps.

 

[JMSKI333]

I always just thought that some SPS's have brown polyps and that's that.

 

[uhupong]

I always just thought that some SPS's have brown polyps and that's that.

No it's not

 

[JMSKI333]

No it's not

What color would you say those polyps are?

 

[uhupong]

What would you say those polyp colors are?

 

[uhupong]

Some of my SPS polyps color have changed from what they used to be.

If you have knowledge or experience please assist.

Thx

 

[JMSKI333]

Maybe you misunderstood my original post. I said that some sps polyps are brown, not all sps polyps are brown. I understood your second post as "sps don't have brown polyps". Am I incorrect? That is why I posted that photo.

I am assuming you also feel that the polyps on the Spongodes are brown. Your photos look like all sorts of polyp colors to me.

I hope that cleared any confusion that my posts may have made. If your corals originally had a colored polyps, but now they are brown polyps, then that information would be helpful. I have never heard of the zooxanthellae maintaining good color but the polyps browning out. Is it all of your SPS?

 

[uhupong]

I'm having problem mostly with miliopora and some acros.

For example, Sunset miliopora used to have bright green polyps but now have white dull color.

 

[JMSKI333]

What are your tank parameters? Mainly your phosphate and Nitrate Readings.

 

[uhupong]

My tank is 120G mostly with SPS

All parameters have been maintained for more than a year.

Alk 11 by BRS doser
CA 460 by BRS doser
MG 1450 by hand
Salinity 1.025. -Calibrated
Phospate 0.04-0.09 -Hanna
No3 ~0 -Redsea
PH 7.95-8.10. - prob + salifert
Red sea NOPOX - on demand
Red ses reef energy - twice a week


Light 2 Maxspect razor
Flow MP40 +WP40
BRS reactor GFO + Activated Carbon
Skimmer SR-2000 bubble blaster
30G sump
Osmolator ATO
5 stage RODI read 000
Apex controller