Not looking well

[Jimbhoy13]

Hope I’m in right forum. Not sure if it’s soft or lps.

I started with a small one of these and it grew very large and had several offsprings which I pulled off and put in different parts of tank/s.
Now these two are looking poorly. Other corals are ok.
Only changes are that my alkalinity (usually kept between 8 & 9 dkh) has been dropping and is now about 6.6 on Hannah check. Calcium is high at 500+. Phos 0.02 and nitrate 1. Magnesium 1320.
Any ideas of what’s happening, dying?

 

[srobertb]

It almost looks like hydnophora. Do you have a phone that’s not from 2005 you could take more pictures with?

 

[Jimbhoy13]

My phone is iPhone XR.

 

[thatone08]

My phone is iPhone XR.

Take a picture that isn’t zoomed in to much.

 

[Jimbhoy13]

This is same type of coral in my other tank

 

[Jimbhoy13]

Not zoomed in

 

[thatone08]

It looks like Hydnophora exea. Any changes to lighting intensity or changes to flow?

 

[thatone08]

Can you take them like that with just the whites on please.

 

[Jimbhoy13]

It looks like Hydnophora exea. Any changes to lighting intensity or changes to flow?

No but I did move the rock they were on but that was a couple of months ago

 

[Jimbhoy13]

Can you take them like that with just the whites on please.

This

 

[Jimbhoy13]

This area seems to have turned white then disappeared/ died

 

[Jimbhoy13]

I think I was told it was a rhodactis. It grew very large quickly and produced others.

 

[thatone08]

What temp is your tank at? How is the flow in that corner?

 

[Jimbhoy13]

Temperature is always 26. Flow around the tank is pretty good I have two Maspect gyre XF330.

 

[thatone08]

Do you have a quarantine tank you can put it into. Maybe spot feed it in there. Or if you have a band saw frag it and save what you can.

 

[Jimbhoy13]

I don’t have a quarantine tank. I could try fragging it though. There seems to be several new growths there.
Thanks for your advice ‘Thatone08’