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Unread 12/09/2017, 11:40 AM   #1
PingG25
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Zoa’s Closing

Not sure why but I have a number of Zoa’s that are struggling to open. I can’t see any evidence of disease or pests but look very poorly. Is there anything obvious that I need to look at?


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Unread 12/18/2017, 07:39 PM   #2
Andrew S.
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Maybe too high of lighting


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Unread 12/18/2017, 07:40 PM   #3
Andrew S.
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Or even salinity or too low lighting.


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Unread 12/18/2017, 11:51 PM   #4
PingG25
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Thanks. They were doing well with colonies growing and spreading. Then overnight they started to struggle. Lights haven’t changed. I then went over the water parameters over the last couple of months. The only things different, Mg higher, Ca slightly higher but Kh down that might suggest the Ca & Kh are out of balance. Beyond that I’m unsure.


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Unread 12/28/2017, 09:53 AM   #5
jjoos99
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Quote:
Originally Posted by Andrew S. View Post
Maybe too high of lighting
What lighting strength works best with zoes? I have my tank set up mostly for sps with some lps and have tried some zoes. I tried bambams and one other that I dont know the name of and they would do good for a bit then not open much and have finally stopped opening and are dead. My sps and frogspawn, torch, and acans are doing wonderful. I had the zoes on the bottom of the tank which is getting probably close to 200 par. All tank parameters are in good shape. I have a piece of ora gonipora that isnt doing as well as it should either. Not sure it that is related or not. Any advise would be appreciated.
thanks
jeff


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Unread 12/28/2017, 12:14 PM   #6
Jekerry
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I had that. Did a dip and it was a little nudibrach. I thought I saw something odd and the LFS suggested doing a dip. Did you try dipping it?


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Unread 12/28/2017, 12:52 PM   #7
jjoos99
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No I didnt dip the polyps. I have another head of two different kinds of zoes that are doing ok but the other 2 types died. Just trying to figure out why or if I need to fix something.
Jeff


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Unread 12/28/2017, 11:38 PM   #8
Reefpuck
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Quote:
Originally Posted by PingG25 View Post
Thanks. They were doing well with colonies growing and spreading. Then overnight they started to struggle. Lights haven’t changed. I then went over the water parameters over the last couple of months. The only things different, Mg higher, Ca slightly higher but Kh down that might suggest the Ca & Kh are out of balance. Beyond that I’m unsure.


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You should post your actual parameters. Saying things like "slightly higher" and "kh down" leaves an open end in trying to diagnose the issue. If you had a recent/large parameter swing, or something is "out of balance", that could be your problem. Did you change salts recently? Large water change? Knowing your other parameters like nitrates/phosphates could also be helpful.

Just trying to be helpful. Let us know!


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Current Tank Info: 90g mixed reef w/ 55g sump/fuge.
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Unread 12/29/2017, 02:41 AM   #9
PingG25
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Hi, just checked the parameters using Salifert

Mg 1275
Ca 425
Kh 9.3
Po4 .015
Nitrate 5
PH 7.7 and has always been 7.7
SG1025

I have changed salt from a LFS brand unknown maybe TMC to H2O. The same salt from where the corals were purchased. Water temperature has been a frustration. I have 2 in the tank thermometers that read 79&80, but I also have a standard house thermometer that reads 5 deg less plus a cheapest digital that reads the same. All in all nothing dramatic.


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