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#1
06-07-2009, 11:42 PM
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.. how old is your tank?
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180G Office Reef. Started Sept 2012 http://www.canreef.com/vbulletin/showthread.php?t=88894 62G Starfire Reef. Started Jan 2013 http://www.canreef.com/vbulletin/showthread.php?t=89988 
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#2
06-07-2009, 11:49 PM
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tank is over a year and half old
the hard corals that died have been in there for over 5 months all my parameters are good (or so i thought) pH = 7.9 Ammonia = 0 nitrate = 0 nitrite = 0.1 phosphate = 0 calcium = 380mg/L yah all my fish are good, soft corals are fine just the hard corals all died very quickly. i looked it up on the net and it sounds like Rapid Necrosis. anyone else had or know of this? in terms of changes: i did add a neon dottyback and some porcelain crabs that didn't make it.
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#5
06-08-2009, 02:02 AM
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What is your DKH at?
What do you dose to keep the DKH,Calcium up?
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#6
06-08-2009, 02:12 AM
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You don't have an anemone by chance, do you? My Anemone just made half my Hydno dissapear. Apparently they dont get along LOL
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Dan Pesonen Umm, a tank or 5
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#7
06-08-2009, 03:22 AM
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How much flow and what kind of light do you have? I've lost hard corals that were receiving inadequate light and flow before. In some cases it took months where the coral barely or didnt grow before it shed off all of its flesh starting at the base.
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"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour
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#8
06-08-2009, 03:24 AM
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I do have a bubble tip anemone that is pretty small but would have to sting the hard corals wouldn't it?
and it hasn't come near the hard corals I dont' have a kit for measuring DKH. I dose with Purple Up maybe every 2-3 days. I have quite a bit of flow and two T5HO's on it and my corals had been growing quite well with all their polyps out until this sudden dissappearance.
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#10
06-08-2009, 05:16 AM
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is DKH the same as KH?
i just was searching through my bucket of aquarium stuff and found a Hagen KH test kit the KH for my tank was 80mg/L as calcium carbonate apparently that's low according to this kit. i'm supposed to be in 105-125 is that accurate?
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