Half of corals randomly dying

[TbSaysNo]

Parameters in the pictures. My euphyllia torches are doing great, but my birdsnest is dying, as Well as my favia and montipora. Nothing is out of the ordinary in the parameters.

 

[Lavey29]

PH is low. Numbers aren't bad. Have you done a recent ICP test? What is your lighting?

 

[StatelineReefer]

Your phosphate is zero, or close to it.

Your calcium spiked to 600, then sharply dropped. Was that testing error or overdose and precipitation?

 

[TbSaysNo]

Your phosphate is zero, or close to it.

Your calcium spiked to 600, then sharply dropped. Was that testing error or overdose and precipitation?

testing error, after I got a automatic tester

 

[TbSaysNo]

PH is low. Numbers aren't bad. Have you done a recent ICP test? What is your lighting?

my lightning is Red Sea led 90 x2.

 

[Stonefortheday]

What automatic testers are you using

 

[iamacat]

What’s up with the Alk ranging from 12 to 8.1 over 3 days? Was that part of the testing issue?

 

[TbSaysNo]

What automatic testers are you using

Hanna HI97105 Marine Master Photometer​

Hanna HI97105 Marine Master Photometer | Seaflower

Check Hanna HI97105 Marine Master Multiparameter Photometer (without reagents) at Seaflowerstore

www.seaflowerstore.com

 

[TbSaysNo]

What’s up with the Alk ranging from 12 to 8.1 over 3 days? Was that part of the testing issue?

that was from about 4 months ago, when I used a different salt. this issue happened long after that.

 

[blecki]

An alk swing can cause death in SPS months later; that's what makes these issues so hard to diagnose. Birdsnest specifically is a very sensitive coral - it has a reputation for being 'hardy' but IMO that's just because it grows so fast. Every colony I've ever had of it has been prone to sudden and rapid unexplained death, even while frags of the colony grow like weeds in the same tank.

 

[TbSaysNo]

An alk swing can cause death in SPS months later; that's what makes these issues so hard to diagnose. Birdsnest specifically is a very sensitive coral - it has a reputation for being 'hardy' but IMO that's just because it grows so fast. Every colony I've ever had of it has been prone to sudden and rapid unexplained death, even while frags of the colony grow like weeds in the same tank.

I should have stated this in my title, sorry. I got these corals about 2 months ago

 

[iamacat]

that was from about 4 months ago, when I used a different salt. this issue happened long after that.

In the past I could tell if my All for Reef dosing container was empty because the color on my SPS and especially birdsnest would start to fade. That would only take a couple days.
What it appears is that your more demanding corals are starved of what they need. I read through your previous posts, sounds like stability has been a battle.

red flags for me are a potential lack of required flow for nutrient exchange. Your gyres likely make the torch’s move but they don’t push the water around in a dynamic manner that most SPS require. For instance I have a 75g with 2 xf330 gyres accompanied by a Nero 3 and 5 for dynamic flow opposite the gyre flow.

This lack of flow is partly shown with your low pH, ideally you want to shoot for above 8 to 8.3. Extra flow can increase the pH and there are a number of other ways to raise it.

if you have been battling with non SPS coral health and making adjustments to the system it is very likely you have ticked off the SPS

 

[JTP424]

Also suggest a photo of the tank overall so we can review placement? I.E. Flow, and lighting etc.

 

[blecki]

Can't underestimate the flow needs of birdnest. Always seems to die from the center when the colonies get big. I always thought it must be the coral blocking flow and light to itself.