What's wrong with some but not all of my corals?

[JGTPA]

I have a 1 year old system with mostly soft corals. All the fish are doing fantastic as well as, the majority of my corals. However, my Duncan, candy cane, & xenia are not. The Duncan was doing well but looks like it's a goner. The candy cane & xenia frags are alive but not well. The xenia will not fully open regardless of placement.
Any experienced reefers have any advise?

Parameters:
pH - 8.1-8.2
Nitrate - 4.8
Phosphate - 0.034
Alk - 8.1
Calcium - 420

 

[vetteguy53081]

Pics would be helpful
Many softies release toxins and leathers release terpenes which is also a toxin. These can affect each other.
run chemipure blue to alleviate this.
numbers look good, but I wonder if any false readings?
Has there been a change in lighting or water flow?
What test kits are you using?

 

[sfin52]

A list of fish would help make sure it wasn't a fish doing this.

 

[TopShelfAquatics]

Like someone stated above you might have a fish or two that have developed a taste for those corals. Keep an eye on them. We have had some tangs in our systems that absolutely love to devour the flowy stuff. Specifically Duncans. They will go right up and rip the heads right out of the stems.

 

[sfin52]

Like someone stated above you might have a fish or two that have developed a taste for those corals. Keep an eye on them. We have had some tangs in our systems that absolutely love to devour the flowy stuff. Specifically Duncans. They will go right up and rip the heads right out of the stems.

What type of tang is that?

 

[JGTPA]

Thank you all! I'll get a pic soon. No changes in lighting or flow. I was wondering if my tang or angel were picking on them but, I've never seen them do it. The corals also don't look physically damaged. I do run carbon (Red Sea) in a reactor & change it regularly because of my leathers.
Fish list is as follows...
- kole tang
- foxface rabbit
- flame angel
- dispar anthias
- six line wrasse
- roayal gramma

Other Corals List
- zoas
- toadstool leather
- cespitularia
- gorgonian
- green nepthia

 

[JGTPA]

Pics would be helpful
Many softies release toxins and leathers release terpenes which is also a toxin. These can affect each other.
run chemipure blue to alleviate this.
numbers look good, but I wonder if any false readings?
Has there been a change in lighting or water flow?
What test kits are you using?

I use Hanna for alk, nitrate, & phosphate. I use API for pH & calcium.
I run carbon in a reactor & change it regularly. I've been using Red Sea Reef Spec. Chemi Pure Blue would be better?

 

[Wasabiroot]

What's your salinity at?

 

[sfin52]

Thank you all! I'll get a pic soon. No changes in lighting or flow. I was wondering if my tang or angel were picking on them but, I've never seen them do it. The corals also don't look physically damaged. I do run carbon (Red Sea) in a reactor & change it regularly because of my leathers.
Fish list is as follows...
- kole tang
- foxface rabbit
- flame angel
- dispar anthias
- six line wrasse
- roayal gramma

Other Corals List
- zoas
- toadstool leather
- cespitularia
- gorgonian
- green nepthia

Watch that flame.

 

[Screwgunner]

Do you dose amino acids. If not get some fuel or reef complete.

 

[sfin52]

Do you dose amino acids. If not get some fuel or reef complete.

Not in newer systems. Love both products

 

[DeniseAndy]

My guess is the flame and/or foxface. The corals you mentioned that were not having issues are not the corals most fish will touch (exception: zoas).
The other option is toxins. That neon nepthea is a nasty fellow and gorgs are too once they get growing. LPS do not like either of them. FME
Pictures will also help a ton.

 

[The Farmer]

Magnesium?

 

[vetteguy53081]

My guess is the flame and/or foxface. The corals you mentioned that were not having issues are not the corals most fish will touch (exception: zoas).
The other option is toxins. That neon nepthea is a nasty fellow and gorgs are too once they get growing. LPS do not like either of them. FME
Pictures will also help a ton.

Last foxface I had caused havoc with my softies

 

[TopShelfAquatics]

What type of tang is that?

We have had Vlamingis, Sail Fins and Dussumieri tangs do it. As they get bigger is when you have to keep an eye on them.

 

[Glenner’sreef]

Pics would be helpful
Many softies release toxins and leathers release terpenes which is also a toxin. These can affect each other.
run chemipure blue to alleviate this.
numbers look good, but I wonder if any false readings?
Has there been a change in lighting or water flow?
What test kits are you using?

Yup. What he said!!!