Help my GSP just died

[samuel_e]

My GSP just died, I don't know why I just whent to do my semi weekly 12 percent water change and noticed my GSP was all closed up and within hours it had completely died, I tested my water, the calcium was right, the ph and alk were looking good, and so did the ammonia, and nitrate, and nitrite. Non of my other corals show any signs of stress yet. Any suggestions, should I be worried for my other corals?

 

[Rocks reef]

Are you sure it's dead? Sometimes GSP gets grumpy and closes for a little while.

 

[samuel_e]

Are you sure it's dead? Sometimes GSP gets grumpy and closes for a little while.

It's turned pale white and is detaching from the rock in tiny pieces.

 

[GSPClown94]

Pictures?

 

[samuel_e]

Pictures?

Whats left is on the edge of that rock, it's basically gone at this point.

 

[GSPClown94]

Whats left is on the edge of that rock, it's basically gone at this point.

I'm not really seeing anything here. It is hard to see in all blue light, white light is better. Do you happen to have pictures before it died? Very strange that it died and disintegrated so quickly.

 

[samuel_e]

I'm not really seeing anything here. It is hard to see in all blue light, white light is better. Do you happen to have pictures before it died? Very strange that it died and disintegrated so quickly.

No I don't have any pictures from before it died, I bought it earlier this week, it was happy and open for 3 days then it bleached and died.

 

[samuel_e]

No I don't have any pictures from before it died, I bought it earlier this week, it was happy and open for 3 days then it bleached and died.

It had about 4 to 5 heads.

 

[JTP424]

Welcome to the reef!
Looks like you're fairly new to the site... so not much history of your tank to look at...
Can you give us the low down?
How long has your tank been running.
What are the parameters, not just "They good/they're perfect"
What's your lighting and it's schedule.
Full tank photo to help.

That will give us some starting data :)

 

[samuel_e]

Welcome to the reef!
Looks like you're fairly new to the site... so not much history of your tank to look at...
Can you give us the low down?
How long has your tank been running.
What are the parameters, not just "They good/they're perfect"
What's your lighting and it's schedule.
Full tank photo to help.

That will give us some starting data :)

I think I found the problem my digital salinity checking tool might need to be replaced, because it says it's at 1.025 but my refractomiter says 1.043. Now I'm just surprised my other corals aren't dead too.

 

[JTP424]

I think I found the problem my digital salinity checking tool might need to be replaced, because it says it's at 1.025 but my refractomiter says 1.043. Now I'm just surprised my other corals aren't dead too.

What tools are you using?

 

[samuel_e]

I think I found the problem my digital salinity checking tool might need to be replaced, because it says it's at 1.025 but my refractomiter says 1.043. Now I'm just surprised my other corals aren't dead too.

Also my tank is 4 to 5 months old but I only started adding coral around a week ago.

 

[samuel_e]

What tools are you using?

Hanna HI98319 Salinity & Temperature Tester​

 

[samuel_e]

Hanna HI98319 Salinity & Temperature Tester​

I bought it on ebay

 

[JTP424]

Have you calibrated your Hanna to the provided calibration liquid? Same with the refractometer to RO Water?

 

[exnisstech]

How are you calibrating the Hanna ans how are you calibrating the refractometer. Both tools are unreliable if not properly calibrated.
FWIW I found the hanna read 0.002 low when calibrated with Hanna solution but it was consistant so I would just add 0.002 to my reading.

 

[samuel_e]

How are you calibrating the Hanna ans how are you calibrating the refractometer. Both tools are unreliable if not properly calibrated.
FWIW I found the hanna read 0.002 low when calibrated with Hanna solution but it was consistant so I would just add 0.002 to my reading.

Good to know thanks.

 

[exnisstech]

I've always calibrated my refractometers with calibration fluid. I'll post an article below from RHF on how to make your own out of table salt. I trust it over fluid sold in stores.

https://reefkeeping.com/issues/2004-06/rhf/index.htm
This is also a very good read on testing salinty in general as well with different devices.

https://reefs.com/magazine/chemistry-and-the-aquarium-specific-gravity-oh-how-complicated/

 

[samuel_e]

I've always calibrated my refractometers with calibration fluid. I'll post amd article below from RHF on how to make your own out of table salt. I trust it over fluid sold in stores.

https://reefkeeping.com/issues/2004-06/rhf/index.htm
This is also a very good read on testing salinty in general as well with different devices.

https://reefs.com/magazine/chemistry-and-the-aquarium-specific-gravity-oh-how-complicated/

Thanks reading now!

 

[samuel_e]

after some time has passed and I corrected my salinity, some GSP appeared near where my old one died. It's coming out of a crevice in the rock work I had to move my tank to see... one lone polyp lives. Also thanks for suggesting I recalibrate my refractometer, it was very very far from accurate, my corals now look a lot more colorful and a little more extended.