ID this coral

[t5Nitro]

Hey guys,

Like most of my other sps I think this one is receding and now has less PE than usual. Anticipating that I'll lose all of the stony corals through this young tank process. Just some background info since it seems ive posted a lot on coral loss, a friend of mine needed to take his entire tank down as I then needed to move a fully established 7 yr reef tank into a newly cycled tank now 2 months stocked. Probably not unexpected that the stony corals are going. I did want this one identified in case it doesn't make it (fingers crossed) because I'd certainly like one again in the future.

Here it is. It looks like GSP but it's a hard coral. Very cool looking in the current.

 

[ndrwater]

Looks like Galaxia

 

[Brandon Smith]

Maybe a goniopora. Do the tentacles extend further then that at all?

 

[minus9]

Agree, either A. astreata or fascicularis
The sweepers can get quite long, so give it some room.

 

[vetteguy53081]

It is galaxia

 

[t5Nitro]

Maybe a goniopora. Do the tentacles extend further then that at all?

Agree, either A. astreata or fascicularis
The sweepers can get quite long, so give it some room.

The tentacles looked like this for the past month. Little more extended. It does have sweepers thatll come out 3 or 4 inches occasionally. 2 things that have happened in the tank in the last month have been an accidental alk spike to 11.9 (now stable 8.9 x3 days) and overdose on phosphorus supplement where I had 0.56ppm after dosing, 0.18ppm last evening. I also had an rbta on the run a few days ago so I'm not sure what it all stung.

 

[C. Eymann]

Looks like Galaxia

+1

 

[t5Nitro]

Thanks guys!

 

[minus9]

Sorry, meant to type G. astreata or G. fascicularis, not A
Galaxea do well with some feeding (like a lot of LPS).

 

[t5Nitro]

Are these things harmful as far as when they start to have tissue loss and begin to die back? I'd say this 8-10" colony has receding tissue about 20% of it. I just don't want it to cause major toxic effects to the water if I should remove it early.

 

[vetteguy53081]

I agree on star galaxia

 

[Ucyibd1]

I had to segregate my galaxea coral. It got the size of a football and stung everything within 10” of it. Beautiful but I would get rid of it in a heartbeat.

 

[minus9]

Are these things harmful as far as when they start to have tissue loss and begin to die back? I'd say this 8-10" colony has receding tissue about 20% of it. I just don't want it to cause major toxic effects to the water if I should remove it early.

How old is your tank and what are your current parameters? You can simply take a flathead screwdriver or chisel and break away the dead parts. Each polyp has a tube-like structure directly below it, so the tissue/skeleton between each polyp will break away as you frag/break it apart. This is how we used to frag galaxea in the 90's.

 

[t5Nitro]

Hey there, thanks, I will give that a go tomorrow.

Tank has only been set up since January. Livestock was all transferred from a much older reef tank that needed to be taken down.

Last parameter check:
SG 1.024
Ca 445
Alk 9.1
Phos 0.10
Ammonia 0

 

[minus9]

I would let your alk drop a little, somewhere in the lower 8's and slowly raise salinity to NSW level, 1.026
Be patient and give it some time.