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Old 03-22-2011, 03:47 PM   #1
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Brain coral not doing so great

1. Type & how long you have had it: Brain Coral, about a month
2. Current lighting & Bulb Age: 30" qaud t5 2x10k 2x aetnic, Bout 2 months
3. Nitrate:2.5
4. Calcium:450
5. Phosphate:1.0
6. Alkalinity:unknown right this second, can test if needed
7. pH:8.3
8. Salinity:1.025
9. Temperature:79
10. Liquid or strip test kits:liquid
11. Location in tank:sandbed dead center
12. Current amount of flow:medium
13. Current tank dosing regimen:none
14. Nearby coral:none
15. Explanation of problem: The coral doesnt seem as brightly colored as it was and it seems to be receding which i believe is a bad sign.

Any help would be appreciated. I keep my lights on for about 9 hours total with blues coming on an hour before whites and the same when its lights out.

Thanks guys!!
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Old 03-22-2011, 04:41 PM   #2
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Ack... I remember the photo of that right after you bought it. Sure has changed quick. Bleached out, definitely. Usual suspect is too much light, or improper light acclimation, but in your case with your lighting I wouldn't think that would be an issue.

Phosphates are really high (you really want something less than .03), but I wouldn't think that's the issue.

It looks like all the tissue is still healthy, and it's still expanding, so that's good news. Part of me thinks maybe it wants to be sheltered from the light a bit, but the other part of me would be worried about messing with it and stressing it even more. If it was mine, I'd probably just let it be for a week or so and see if it gets better or worse, and then reevaluate.

Does it extend it's tentacles at night?
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Old 03-22-2011, 04:51 PM   #3
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I have never seen any tentacles. It does have those little black tubes that sprout what looks like a satellite dish along his edges here and there..

Thanks for the quick reply! I started him on the sandbed also, was only on a rock once so i could take a picture. My other corals are doing fabulous at least.
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Old 03-22-2011, 06:45 PM   #4
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I've normally found my brain coral happiest after I've performed my weekly Mg dosing. What are your Mg levels?
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Old 03-22-2011, 07:00 PM   #5
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I do not currently test for that. I also haven't dosed any chemicals at all.
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Old 03-22-2011, 07:19 PM   #6
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This is a great article. Do-It-Yourself Magnesium Supplements for the Reef Aquarium by Randy Holmes-Farley - Reefkeeping.com

I am not sure you'd want to follow the DIY part of the article, but the background info is good to know.

cheers

W.
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Old 03-22-2011, 07:19 PM   #7
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You should not have to dose for MG. PWC`s will give you all you need. That goes for most trace elements except maybe calcium and your reading looks OK on that. Keep him on the sandbed. Maybe move him back a little in the cleft of the rock.
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Old 03-22-2011, 07:25 PM   #8
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OK, I'll move him under the overhang a bit see if he perks up.

Thanks very much
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Old 03-22-2011, 07:33 PM   #9
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I perform 10-15% PWC every weekend and often while cleaning up the sand bed in the middle of the week I'd do another 10% PWC and still I find Mg levels in the 700-900 range if I am lucky.

I am not saying it's the issue in your case, I am just saying if you don't measure it then you don't know.
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Old 03-22-2011, 07:58 PM   #10
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Quote:
Originally Posted by Wael El-Dasher View Post
I perform 10-15% PWC every weekend and often while cleaning up the sand bed in the middle of the week I'd do another 10% PWC and still I find Mg levels in the 700-900 range if I am lucky.
Mg consumption should go hand in hand with calcium consumption... more or less. If your Mg levels are that low, then either your Ca levels are also low, or your salt mix is really imbalanced. Seems like most folks using a good brand salt will naturally end up with Mg levels about 3x their Calcium levels - i.e. 400ppm Ca and 1200ppm Mg is a good balance.
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