Please Help Acropora in Trouble

[O'l Salty]

This coral went through QT for 6 weeks and it's been in my display for about 3 weeks. Up until about two days ago it was doing fantastic. It looks like the flesh on the tips is coming off. I haven't been able to see any pests. All of my other corals seem fine.

Salinity 1.025
Temp 78
Po3: 3
Po4: .07
Alk 8.0
Ca 440
Mg 1275

 

[nautical_nathaniel]

Looks like STN on the tips, I would try dipping the coral in something Coral ReVive by Two Little Fishies or a similar product.

#reefsquad, any more thoughts?

 

[ksfulk]

Is the coral in direct flow? Ive had a few acros peel like that when the powerheads were right on top of them. Otherwise, it could be nipping from other livestock perhaps (depending on whats in your tank).

 

[saltyfilmfolks]

I’d not dip it honestly, I’d put it back in the qt though.

What’s the difference in the two tanks?
Flow
Light ?

 

[Rick.45cal]

Looks like burnt tips, but your parameters suggest otherwise. Was there a big change in alkalinity between the QT tank and the display?

 

[O'l Salty]

Looks like STN on the tips, I would try dipping the coral in something Coral ReVive by Two Little Fishies or a similar product.

#reefsquad, any more thoughts?

What is STN?

 

[O'l Salty]

I’d not dip it honestly, I’d put it back in the qt though.

What’s the difference in the two tanks?
Flow
Light ?

I use the same lights on both tanks and the flow is very similar. I think the flow is higher in the DT and I've been turning it up recently. I took the flow back down tonight and moved the coral into a lower flow portion of the tank.

 

[O'l Salty]

Looks like burnt tips, but your parameters suggest otherwise. Was there a big change in alkalinity between the QT tank and the display?

The only change has been P04. I've raised it from .009 to .07.

I went ahead and started running some carbon tonight incase any contamination has gotten into the tank. I dose Red Sea reef energy A and B twice per week. I've been doing that for 4 months or more and never had any negative reaction from using it.

 

[jsker]

What is STN?

basically means that the coral tissue is coming off. STN is slow and RTN is rapid Link

 

[jsker]

I had some issues back in the spring and backed of the intensity of my white spectrum. I also started dosing Vitamin C with my frozen to help the corals recover for the daily blast of light. It sound crazy, but this is a old school reefing method of help with fish stress and now with coral health.

 

[O'l Salty]

I had some issues back in the spring and backed of the intensity of my white spectrum. I also started dosing Vitamin C with my frozen to help the corals recover for the daily blast of light. It sound crazy, but this is a old school reefing method of help with fish stress and now with coral health.

How much vitamin C were you dosing? Ml/Day?

 

[jsker]

How much vitamin C were you dosing? Ml/Day?

4 ml daily

 

[O'l Salty]

4 ml daily

Was that in your 72 gallon bow front tank? I found some vitamin C in powder form on Amazon but I'm not sure of the conversion to ml. What product were you using?

 

[jsker]

Was that in your 72 gallon bow front tank? I found some vitamin C in powder form on Amazon but I'm not sure of the conversion to ml. What product were you using?

Do you feed frozen? How much frozen to you slack. I will slack/thaw a weeks worth of food and use 1/4 teaspoon of the vitamin C powder and mix it for a week and feed all week.

 

[O'l Salty]

Do you feed frozen? How much frozen to you slack. I will slack/thaw a weeks worth of food and use 1/4 teaspoon of the vitamin C powder and mix it for a week and feed all week.

I feed 1/2 cube per day. Each feeding is .05 ounces. I'm not sure what slacking is. I only have three fish.

 

[Maritimer]

Slacking refers to thawing food slowly, such as in a refrigerator. Takes longer - you should probably start the night before - but the end product is better all 'round.

~Bruce, who tends to just drop a couple of cubes into a cup of room-temperature RO/DI with a few drops of Selcon

 

[O'l Salty]

Thanks for the help.