Corals receding

S

Sherman

Membership Expired
Temp 79
Salinity 1.023
ph 8.15
Alk 11dkh
Mag 1000
Amonia 0
Nitrite 0
Nitrate 10ppm
I have a Purple Frog Spawn and a wall hammer receding and can't figure out why. The only change lately is I normally keep Temp at 77.5ish. but the last few days it has been around 79. I don't have a chiller, Just fans. It's not fluctuating between 77.5 to 79in 24 hrs. The temp has stayed above 78. Could This be the cause? I got the Wall at Franks Anniversary sale and the Purple Frogspawn two months ago
I have Leathers, Torch, Zoas, Mushrooms and fish
 
Do you have any anemones in that tank? I had a couple of kryptonite bubble tips in my euphylia tank for a few days and they all pulled in their polyps. The anemones were in a basket, so never touched the corals. I lost a very expensive gold torch that I got the week before. Everything else recovered just fine. I ran a bunch of carbon, and did water changes. My rose bubbles never seemed to affect the euphylias.


David
 
First think I'd do is double check all those numbers at a LFS, especially the salinity. I have found more issues that are caused by the salinity being low than anything else.
 
@DFW wrote:
Do you have any anemones in that tank? I had a couple of kryptonite bubble tips in my euphylia tank for a few days and they all pulled in their polyps. The anemones were in a basket said:
I do have a Nem and it's doing great. The Nem is on the other side of the tank. I have regular hammers doing just fine. SO I figure if they are doing good, the Wall hammer and Frogspawn would be fine.

@franklypre wrote:
First think I'd do is double check all those numbers at a LFS said:
I use a Refractometer
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Click to expand...
 
Make sure you don't have brown slime disease. Double check salinity usually salinity changes in my experience cause lps damage
 
My green nems were doing great as well! It was the corals that were not doing good because of the green nems. As I said, my newest euphylia coral in that tank - a gold Aussie torch - was the most sensitive to the chemical warfare and got killed.
 
Your salinity is low for SPS/Reef. it should be up near 1.024/25. You are also running a bit high on alk but not dangerously high. SPS usually does okay in the 10-11 range but remember that your test kits are typically calibrated at a slightly higher salinity so your readings may be off a bit due to that. Also you didnt mention your calcium.. that should be over 420ish.

The other thing that stands out is your ph.. thats low for an alk level that high. Id expect a 8.30-8.4 with alk at 11.
 
@DaveJ wrote:
Your salinity is low for SPS/Reef. it should be up near 1.024/25. You are also running a bit high on alk but not dangerously high. SPS usually does okay in the 10-11 range but remember that your test kits are typically calibrated at a slightly higher salinity so your readings may be off a bit due to that. Also you didnt mention your calcium.. that should be over 420ish. The other thing that stands out is your ph.. thats low for an alk level that high. Id expect a 8.30-8.4 with alk at 11. said:
+1
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lots of expertise on this thread for sure. If those particular LPS coral are the only coral in your tank suffering, there might just be something in the water irritating them. Have you run any carbon (NOT KENTS or at least check the batch). If there is chemical warfare between the corals or something slipped into the water, that should remove it. to answer your original question, a slight temp swing won't affect the coral, as a matter of fact I've read a few articles stating that a slight temp swing is actually good for the coral.....
 
I think the reason you ph is lower with higher alk is that your mag is also low for where I keep mine. I like my alk at 11, mag at 1300-1400 cal 475-500 sal I run at 1.027.


Sent from inside the shark tank!
 
I am bringing my mag back up, I am running fresh carbon(not kent), I don't have brown slime. If my parameters are within "acceptable", I didn't think there would be any issues. But I will bring them in line. I hate when things die!
 
My wife just text me... My Anemone split! Were those two corals collateral damage of the chemical warfare?
 
I had a torch decide to die slowly recently. I have lots of sps that does fine. Sometimes a coral just dies unexpectedly for no apparent reason
 
I removed the green anemones and ran carbon, and did water changes, and the only coral I lost was the Aussie gold torch that I had only had for a week. The kryptonite nems never bothered the palys and zoas in that tank. Coincidence? After they all but killed many of my rose bubbles in another tank, I don't think so! I understand what "species specific tank" means now!


David
 
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