Help Needed with dying torch corals

[ChinaReefer]

Good day, everyone!

Relatively a new reefer here, about a year into reefing now.

We need some help with our torch corals, we always had great success with torch corals, however recently one torch head died and another torch coral is beginning to shrink in. The torch corals are placed on a separate rock with two hammer corals as well as having another elegance coral nearby it. The other torch coral is doing great in the middle light with some good water flow on it, it's really looking good.

Our water parameters have been pretty stable the past two months or so, here is the latest water parameter tests:
Salinity: 1026ppt
PH: 8.6
KH: 6.1
PO4: 0.10
NO3: 6.5
Mg: 1460
CA: 520
Salt: RedSea Coral Pro Salt

Previously our water parameters were great, our KH was always hovering at around 10 or more and PH at 8.1, however after adding a bunch of stony corals we noticed the levels dropped quite low. The stony corals are growing very well and colors are also looking good.

Equipment:
Lights: x2 Aqua Medic Spectrus Twin 180 (Light Preset is set on LPS)
Fans: x1 Bubble Magnus Blower & x2 Vastocean fans
Skimmer: Aqua Medic Ocean Queen 180
Reactor: 5kg Reactor - Running on about 250grams of Zeovit PO4 remover
Dosing: Aqua Medic Reef Dose 5 - Dosing KH, Mg & CA

Currently we are struggling to get the KH higher, it feels like with the growth of the stony corals it's consuming a ton of KH or can it be the refugium?
We have seen this Fairy Wrasse eat some strange things, will he ever nip a soft coral?

Also please if you can suggest on how to increase the KH without getting the PH higher as well as helping with coral placement. Do torch corals need more light or flow?
Any tips and suggestions would be much appreciated!

 

[Dburr1014]

Can you post a video of the flow? Load to you tube and link it here.

Also, baking soda can raise alk without raising ph. (unbaked)

 

[ChinaReefer]

Please take a look and see if you can see any places for improvement.
Apologies for the color of the video, the lights are quite blue now.

 

[ChinaReefer]

Can you post a video of the flow? Load to you tube and link it here.

Also, baking soda can raise alk without raising ph. (unbaked)

 

[Dburr1014]

Your flow looks great.
The only thing I can suggest is to maybe move that one torch away from the others a couple/few inches? I'm not sure if that will resolve anything. Maybe it's not getting flow or nutrients the others are getting out stung by the others??
Not sure OP.

 

[ChinaReefer]

Your flow looks great.
The only thing I can suggest is to maybe move that one torch away from the others a couple/few inches? I'm not sure if that will resolve anything. Maybe it's not getting flow or nutrients the others are getting out stung by the others??
Not sure OP.

Thank you, I will try a different placement for it. I am also wondering about the stinging part. Elegance corals won't sting torch corals would they?

 

[Cell]

Torches typically don't play nice with other euphyllia and sometimes other torches depending on where they from.

 

[Dburr1014]

Thank you, I will try a different placement for it. I am also wondering about the stinging part. Elegance corals won't sting torch corals would they?

Thread 'Getting stung by an elegance coral' https://www.reef2reef.com/threads/getting-stung-by-an-elegance-coral.677769/

 

[ChinaReefer]

Torches typically don't play nice with other euphyllia and sometimes other torches depending on where they from.

Thanks for the input, we will try different placements and make sure to leave space for these corals.

 

[ChinaReefer]

Thread 'Getting stung by an elegance coral' https://www.reef2reef.com/threads/getting-stung-by-an-elegance-coral.677769/

Wow! That's hectic! We will be extra careful now and definitely see to give those elegance corals space.

 

[doubleshot00]

Torches typically don't play nice with other euphyllia and sometimes other torches depending on where they from.

 

[Bxr126]

I went through something similar awhile back. It could be many things but for me it was some sort of bacterial infection. I kicked up my flow a bit and installed a UV sterilizer and I haven't lost a torch in 3 years. Seems like that Alk might be a problem that needs attention. Every system is a bit different but that seems very low to me.