I can’t figure out what’s wrong with corals

[Dinodanger]

Some of my lps and softies are closed or clearly irritated zoa garden is mostly closed with the odd polyp half open acans are shrunken in and mushroom also shrunk to half the size it was previously,
I have checked salinity on two refractometers I’ve done a 30% water change and added a hole bunch of carbon still no change my parameters are as follows:
Sg: 1.025
Calc : 440
Magnesium: 1500
DKh: 8.5
Nitrate: 1/2ppm
Phosphate : 0.5 (was near undetectable but I raised it with aminos to see if that was the issue)
Ph: 8.1
Temp: 26c
I thought flow could be responsible so I turned off the power head that mostly effects the Zoas overnight but still nothing, pests are unlikely as it’s effecting multiple species of coral maybe there’s something I’m forgetting about any help would be appreciated.

 

[Sebastiancrab]

It might be a lighting problem. Can you state what you have and do you know the par values?

 

[MurphyTheClownfish]

Some of my lps and softies are closed or clearly irritated zoa garden is mostly closed with the odd polyp half open acans are shrunken in and mushroom also shrunk to half the size it was previously,
I have checked salinity on two refractometers I’ve done a 30% water change and added a hole bunch of carbon still no change my parameters are as follows:
Sg: 1.025
Calc : 440
Magnesium: 1500
DKh: 8.5
Nitrate: 1/2ppm
Phosphate : 0.5 (was near undetectable but I raised it with aminos to see if that was the issue)
Ph: 8.1
Temp: 26c
I thought flow could be responsible so I turned off the power head that mostly effects the Zoas overnight but still nothing, pests are unlikely as it’s effecting multiple species of coral maybe there’s something I’m forgetting about any help would be appreciated.

I wouldn't rule out pests, I think based on what you're describing you're probably right and it's a parameter problem, but don't rule out a pest. Plenty of annoying little guys out there that'll tick your corals off. Also may come to lighting if it's tank-wide. Could be overdoing it there. Are they bleaching in any way? Or just closed up?

 

[kittenbritches]

Phosphate 0.5 and not 0.05?

 

[MurphyTheClownfish]

Phosphate 0.5 and not 0.05?

Whoa I didn't even see that when I read it the first time. I thought it was 0.05 lol. Yeah that's certainly a tad high

 

[TheDragonsReef]

Phosphates are too high for sure. Should aim for 0.03-0.10

 

[attiland]

Some of my lps and softies are closed or clearly irritated zoa garden is mostly closed with the odd polyp half open acans are shrunken in and mushroom also shrunk to half the size it was previously,
I have checked salinity on two refractometers I’ve done a 30% water change and added a hole bunch of carbon still no change my parameters are as follows:
Sg: 1.025
Calc : 440
Magnesium: 1500
DKh: 8.5
Nitrate: 1/2ppm
Phosphate : 0.5 (was near undetectable but I raised it with aminos to see if that was the issue)
Ph: 8.1
Temp: 26c
I thought flow could be responsible so I turned off the power head that mostly effects the Zoas overnight but still nothing, pests are unlikely as it’s effecting multiple species of coral maybe there’s something I’m forgetting about any help would be appreciated.

I think your nitrates are on the low end for Zoa/ LPS and your mg is on the higher end.
most of these don’t do that well in ultra low levels. I would go 5-10ppm nitrate

my Zoas are almost in the highes flow spot in the tank and loving it. I find they don’t do well in low flow.

Zoas are easy to upset but my biggest parameter swing indicators are Duncans. The close up the quickest after parameter changes.

my bet it is not so much the levels you have but the swings in the parameters. Although it is not impossible but unlikely lighting issue you have.

 

[Dinodanger]

It might be a lighting problem. Can you state what you have and do you know the par values?

I have one ai hydra 26hd with a diffuser all blue channels at 92% red greens at 5 and whites at 30

 

[Dinodanger]

Phosphate 0.5 and not 0.05?

Yeah i was surprised at that also it was literally 0.01 a week prior but I dosed a hefty bit of reef roids and aminos to raise it I didn’t realise it would be that much of a change but the problem was before I had high phosphates

 

[Dinodanger]

I think your nitrates are on the low end for Zoa/ LPS and your mg is on the higher end.
most of these don’t do that well in ultra low levels. I would go 5-10ppm nitrate

my Zoas are almost in the highes flow spot in the tank and loving it. I find they don’t do well in low flow.

Zoas are easy to upset but my biggest parameter swing indicators are Duncans. The close up the quickest after parameter changes.

my bet it is not so much the levels you have but the swings in the parameters. Although it is not impossible but unlikely lighting issue you have.

Yeah that’s possible as I did raise my salinity to 1.025 from 1.024 as my refracto was out of whack

 

[kittenbritches]

Yeah i was surprised at that also it was literally 0.01 a week prior but I dosed a hefty bit of reef roids and aminos to raise it I didn’t realise it would be that much of a change but the problem was before I had high phosphates

How long have the polyps been closed?

 

[Dinodanger]

How long have the polyps been closed?

Couple weeks started with the tops zoas which were receiving most flow then I upped the salinity and the rest followed

 

[Pistondog]

Run some gfo or lanthanum chloride to get to target,
No3 5-10ppm
Po4 < 0.1 ppm

 

[Mr. Mojo Rising]

We will need some real information to help solve the mystery: how old is the tank? how long have these corals been in your tank? what are you dosing to the tank? how often do you do water changes? tank pic? picture speaks a million words...

 

[Dinodanger]

We will need some real information to help solve the mystery: how old is the tank? how long have these corals been in your tank? what are you dosing to the tank? how often do you do water changes? tank pic? picture speaks a million words...

The tanks about 8 months old the corals have been in since a month old as it’s a tank transfer I do water changes once every two weeks more frequent when it was in its earlier stages (Iknow it’s still young)