Bleached corals

[LFGJP]

MY SPS's are bleaching in my mixed tank and I need some help!

210 G mixed reef
Lighting: 3 Radion XR 15/6 AI blade Coral Growth
Water Circulation: 2 MP 40's/ 3 MP 10's/ 3 Gyres

Just got my ICP test done everything looks like in range.. there are no big swings in the tank, everything stays relatively normal. I am not dosing except just kalk in the tank with my top off.. Adding a little soda ash as DKH can drop down to 7.. but it's always within range from 7.5-8

What AM I doing wrong? Or missing? Any suggestions here?

 

[cdemoss01]

Contact vetteguy53081 make sure to put an @ then copy and paste his user right after it.

 

[LFGJP]

@vetteguy53081

 

[cdemoss01]

@vetteguy53081

There you go.

 

[LFGJP]

There you go.

I’m a little confused but ok

 

[cdemoss01]

I’m a little confused but ok

He's a doctor, trust me. If he cant answer it maybe @Jay Hemdal can help

 

[LFGJP]

He's a doctor, trust me. If he cant answer it maybe @Jay Hemdal can help

Oh haha okay! That works!

 

[Mr. Mojo Rising]

Can you post some pictures please, a picture tells a thousand words.

How old is your tank?

How do your corals die? Quick overnight death or slow deterioration?

Any coral eating livestock in your tank?

What are you dosing? Especially to help maintain the alk level?

Have you ever rented a par meter to map your tank? I'm not familiar with your lights, but my first thought is lights too bright, is that possible?

Thanks for the additional info

 

[LFGJP]

Can you post some pictures please, a picture tells a thousand words.

How old is your tank?

How do your corals die? Quick overnight death or slow deterioration?

Any coral eating livestock in your tank?

What are you dosing? Especially to help maintain the alk level?

Have you ever rented a par meter to map your tank? I'm not familiar with your lights, but my first thought is lights too bright, is that possible?

Thanks for the additional info

Hey!
I don’t have anything eating the corals
It was a slow bleaching little by little only the SPS everything else is thriving
Tank is about 2 years old
Just dosing kalk

I’ll send some pics it’s just white bleached corals haha

 

[Mr. Mojo Rising]

It sounds like stn (slow tissue necrosis). Pictures will certainly help, and lots of sps experts here can help you. Good luck

 

[LFGJP]

It sounds like stn (slow tissue necrosis). Pictures will certainly help, and lots of sps experts here can help you. Good luck

What causes that? And it happens to all the SPS in the tank?

I’m not sure about lighting
I didn’t think it could be too much especially its AI blades and XR15s? Not sure

 

[Gumbies R Us]

What causes that? And it happens to all the SPS in the tank?

I’m not sure about lighting
I didn’t think it could be too much especially its AI blades and XR15s? Not sure

https://www.bulkreefsupply.com/cont...al-tissue-necrosis-the-mystery-of-rtn-and-stn

 

[Daftendire]

Kalk will precipitate phosphate and you are on the line at 0.028ppm. since you already have soda ash, an easy thing to try would be to unplug the kalkwasser for a time and see if things color back up.

Fwiw my acros did not like kalkwasser when I tried it. It was associated with driving the phosphate lower than normal.

 

[Mr. Mojo Rising]

Not known what causes it. Does it turn white in one area and then slowly creep up the entire coral? stn is slow, takes a week or so, rtn is rapid, takes 2 or 3 days. What I normally do, and the popular suggestion, is to frag off a healthy piece of coral and glue it somewhere else. Once rtn/stn starts it almost never stop until the coral is dead.

EDIT- Ah, thanks to @Gumbies R Us for that

 

[Gumbies R Us]

Not known what causes it. Does it turn white in one area and then slowly creep up the entire coral? stn is slow, takes a week or so, rtn is rapid, takes 2 or 3 days. What I normally do, and the popular suggestion, is to frag off a healthy piece of coral and glue it somewhere else. Once rtn/stn starts it almost never stop until the coral is dead.

EDIT- Ah, thanks to @Gumbies R Us for that

I believe @Randy Holmes-Farley or @Reefer Matt has done an article before on RTN, but I'm not too sure about STN

 

[LFGJP]

https://www.bulkreefsupply.com/cont...al-tissue-necrosis-the-mystery-of-rtn-and-stn

Looks exactly like that! Slow bleaching of the tissue

 

[LFGJP]

I believe @Randy Holmes-Farley or @Reefer Matt has done an article before on RTN, but I'm not too sure about STN

So the question is am I safe to buy more SPS? Since majority of my SPS frags have been bleached?

 

[LFGJP]

Kalk will precipitate phosphate and you are on the line at 0.028ppm. since you already have soda ash, an easy thing to try would be to unplug the kalkwasser for a time and see if things color back up.

Fwiw my acros did not like kalkwasser when I tried it. It was associated with driving the phosphate lower than normal.

I’ll try that and see thank you for the insight

 

[Dburr1014]

Sounds like to me; big tank, small lights.

Pics would be helpful. Also need more context. What's your maintinance? Filtration?

SG is slightly high.

How old is this tank?

How do you keep mp10's on the glass of a 210???

 

[Reefer Matt]

I believe @Randy Holmes-Farley or @Reefer Matt has done an article before on RTN, but I'm not too sure about STN

Not sure I wrote an article, but rtn and stn are symptoms, not an illness, imo. Bleaching is different as the coral is still alive but white. Dimming the lights and increasing flow with bleached coral has helped me recover them. Stn and rtn are usually caused by many factors, and sometimes it happens without an explainable cause. In those cases, I frag the healthy tissue about 1/8” above the dead area, and remount the frag. That’s been about a 50/50 success rate for me.