My tank a SPS graveyard?

[tc2007]

Just a shot in the dark have you treated any aiptaisa with calcium based product?

No.

 

[SoloGarth]

It is important to distinguish between stn/rtn and bleaching. They can sometimes look similar as a bleached coral is white as is a fleshless coral skeleton. However the causes of these two issues are often different. It looks like loss of tissue on the corals in the photos you posted. There appears to be algae/diatoms visible. Algae will not grow on living coral tissue. Just want to be sure here as It is hard to be sure from photos and I don't know how long they have been in the tank like that.

I think the most important thing to do now is get control of your parameters. Some large water changes would help. Perhaps some GFO to keep the phosphate down. Get the skimmer running again. Then when things are stable introduce some hardy corals and see how they do.

 

[hector_moc]

My opinion is frag the good part of that corals and put them low in you tank and good luck

 

[jonb154]

Has anyone thought about the leathers? I've heard They are notorious for chemical warfare on sps also the temp seems a little low.

 

[tc2007]

Has anyone thought about the leathers? I've heard They are notorious for chemical warfare on sps also the temp seems a little low.

The leathers are just 2 small frags about 2" in diameter. The are on the other side of the tank. I did run some carbon for 2-3 days before I posted this but I don't think the leather is a problem.

LiveAquaria lists temp range of 72-78F for these.

 

[damienpbuckley]

35% doesn't seem like much log for SPS. I'm running Radions at 85%

 

[Icefire]

I vote for PO4 too high, not enought light and I would love to know how stable it is..

 

[sahin]

It is important to distinguish between stn/rtn and bleaching. They can sometimes look similar as a bleached coral is white as is a fleshless coral skeleton. However the causes of these two issues are often different. It looks like loss of tissue on the corals in the photos you posted. There appears to be algae/diatoms visible. Algae will not grow on living coral tissue. Just want to be sure here as It is hard to be sure from photos and I don't know how long they have been in the tank like that.

I think the most important thing to do now is get control of your parameters. Some large water changes would help. Perhaps some GFO to keep the phosphate down. Get the skimmer running again. Then when things are stable introduce some hardy corals and see how they do.

+1 to this.

Water changes. Run skimmer and keeping the tank well fed. Despite the PO4 measuring high, dont skimp on feeding. Go light on the GFO use.