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Old 05-28-2016, 02:34 PM   #1
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Corals sick?

So recently my new acan coral has not been expanding to its full size, and recently it's loosing color in the center of one of the heads(turning brown). I started feeding it brine shrimp because I read some where that's what you do if you want corals to grow better. Also my star polyp coral has not been as full as it has been, the little green things (don't know the scientific term) are out a bit but not as fully as normal. I plan on doing a water change latter today, I'll also post a picture of them latter as well. I hope I can get them to recover.

Also could the problem with my Acan coral be placement it it's about 2/3 up high to the light. It's also near my pump, it does not get blasted by it but it's just a little below its flow.

Over all I'm a little worried, though everything else is fine, fish not acting funny, equipment is fine, so I don't know what the problem is.


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Old 05-28-2016, 03:24 PM   #2
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Hi there could you tell me what your stats are ,also what's fish you have.


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Old 05-28-2016, 04:49 PM   #3
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Acans (now micromussa) are definitely not high light corals. I seem to get better coloration in lower light. Like tap water said parameters and fish would help too as someone could be nipping it.


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Old 05-28-2016, 06:40 PM   #4
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1. Type & how long you have had it:acan 6 months. Star more then a yearClick image for larger version

Name:	ImageUploadedByAquarium Advice1464471322.386314.jpg
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ID:	287042Click image for larger version

Name:	ImageUploadedByAquarium Advice1464471340.057190.jpg
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ID:	287043Click image for larger version

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ID:	287044

2. Current lighting & Bulb Age: led I can't find the a page right now.

3. Nitrate:0

4. Calcium:don't have tools to test

5. Phosphate:don't have tools to test

6. Alkalinity: don't have tools to test

7. pH:7.9

8. Salinity:23

9. Temperature:78

10. Liquid or strip test kits:

11. Location in tank:middle

12. Current amount of flow:moderate?

13. Current tank dosing regimen: if that means sleep light on at 2:30-3 pm lights off at 11pm

14. Nearby coral:none

15. Explanation of problem:


My fish are 2 tank breed ocelaris (I know I butchered the spelling) clown fish, one male and female. I also have a zebra crab somewhere in the tank he only comes out for food though. The whole coral system, skimmer, pump lights have been running for about 16 months I believe. I'll post more on my introduction page when I make one.


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Old 05-29-2016, 06:13 AM   #5
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Hi there based on the information you gave us can only really guess what might be causing it, and the possibilities are incorrect levels of calcium and Kh .high levels of Phos. Salinity to me is a bit on the low side for corals and with your lighting 8-8.5 hours total is on the low side as well to Substrain coral growth. And last of all your crab yes they're meant to be Reef safe but that can depend on how hungry they are and advised to keep a close eye on it at night.


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Old 05-29-2016, 11:49 AM   #6
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Corals sick?

Thanks I'll change the time when I turn on and off my tank light, how long should the light be on then. Also how would I add or remove calcium to the tank then, make if the water more salty is easy but adding minerals I don't know how to do that. Also how would I change Kh and lower the phos levels, what ever that means. I'm not the most knowledgeable person when it comes to reefs. Also do you possibly know the exact reason for the acan to be turning a bit brown?
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Old 05-29-2016, 05:21 PM   #7
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lowering phosphate levels is simple larger water changes , raising up salinity to 1.025.
there is no need to dose anything as long as you do regular water changes . the only time that you would need to dose would be if you are heavily stocked with sps coral.
the salt you use should have all the minerals needed to keep softy's and most lps happy
lighting is important too 2hrs blue turning up slow than 8hrsblue and white turning whites up slow than back to 2 hrs blue no need for lights after dark
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Old 05-29-2016, 05:44 PM   #8
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Corals sick?

Hi there sorry I didn't get back to you earlier in my opinion you're lighting should be on between 10 to 12 hours with a peak time of 4 to 6 hours being that you only have a few corals, start off at the lower times and see how you go. As for lowering your phos yes water changes will help how or you can even buy a phos remover product which ever suits your needs as for your salinity 1.025 is thereabouts where you want to be as said above, but to keep things stable you do need to test regular just doing water changes Will not keep things stable in my opinion as different elements get used up at different rates.
And if I was to have a quick guess on why your coral has gone brown ,I found nine times out of 10 it is usually to do with either high Phos . high No3 or insufficient lighting.


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Old 05-29-2016, 08:30 PM   #9
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It's probably high phosphate levels because it has been fine for a long time before hand, so tonight I'll do a water change and hopefully this will help get everything better.


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Old 05-30-2016, 02:59 PM   #10
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So it's been a day since the change how long will it take for the change to be apparent. Also read some where that the brown color could be from to much nuetrients, so I'm going to stop feeding it brine shrimp.


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