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Old 09-12-2011, 08:23 PM   #1
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looks like tank crash!

So.... I just got hit hard.. all my parameters are good .. a few days ago my plate coral started losing its flesh... its fairly new have had it for about a month or so... I have seen its glory many times.. just noticed yesterday my birds nest was closed as well as my mushrooms.. did a 30% water change.. this evening my wife noticed browning on my Kenya tree.. so once again I decided to do another pwc .. looks like my chili coral isn't to happy as well.. all my parameters are great ... next bulb change isn't for another 6 months... I switched to rodi water quite a while ago from the suggestions of this forum... any ideas guys should I take the hit and remove the corals that are having the issues?
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Old 09-12-2011, 10:11 PM   #2
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Just so everyone can see parameters
.. ammonia 0 nitrites 0 nitrates maybe 5 .
1024 salinity .. temp 78.4 cal. 440.. ph 8.2... phosphate 0 ..
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Old 09-12-2011, 10:32 PM   #3
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chili corals don't survive in 99% of the closed systems anyway. what is your alk? that's more important than calcium numbers IME.
i wouldn't go tossing corals away just yet. prepare another water change and wait and see.
tanks don't just crash. there is something that happens to cause a mass die-off.
stray voltage, a large coral or fish failing, parameter swings, especially alk, a chemical attack (mostly leathers do this), poisoning the tank with some outside additive( what supplements/dosing?), etc.
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Old 09-12-2011, 11:06 PM   #4
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I was going to check alk that's what I've been thinking all night but I need to pick up test kit havnt tested in a while can't find it... .. I have another 20 gallon s working its way right now... anyway to bring down alk if it is high? Never had to... if it is high wouldn't another water change hurt more
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Old 09-13-2011, 07:20 AM   #5
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usually the alk drops, not raises. no, a water change will never hurt.
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Old 09-13-2011, 08:39 AM   #6
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What if your alk is 2.5? To low or to high? And how do I fix it? (Sorry I hijacked your thread)
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Old 09-13-2011, 07:50 PM   #7
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Well I tested my kh... not sure on the band I got hagen but showing high 180 I did 18 drops says acceptable lvls are 125 to 105... advice?
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Old 09-13-2011, 08:56 PM   #8
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On the chance it's a leather coral putting out a toxin, would adding activated carbon help?
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Old 09-13-2011, 11:08 PM   #9
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Quote:
Originally Posted by Rutrag
On the chance it's a leather coral putting out a toxin, would adding activated carbon help?
I I don't think it would .. I use carbon for 1 week everymonth.. on heavily populated tank maybe more so.. but I have alot of corals but I have seen 10 x more in the same setup.. and they use it less then me...
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Old 09-13-2011, 11:53 PM   #10
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Quote:
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Well I tested my kh... not sure on the band I got hagen but showing high 180 I did 18 drops says acceptable lvls are 125 to 105... advice?

thats weird. my test booklet says 143-200 is normal. But 18 drops would be off the charts in my book. 125 equals 7 drops here

well anyways, if ur test says high then I would do pwc after pwc and keep an eye on it. usualy it drops by itself, but if it is way high i would considere pwc

Chemistry And The Aquarium: Solving Calcium And Alkalinity Problems — Advanced Aquarist's Online Magazine
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