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Old 02-14-2010, 07:02 PM   #1
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Corals Dying Fish OK

My tank crashed last July (Out of town) due to power outage. I had an overflow that did not regain it's siphon, which did not circulate the water through the chiller, and the timer never cut off the halides. All of my 90 gal tank of corals were melted. My fish survived the event.

I imediately purchased a reef ready tank to eliminate the siphon problem again, which I had before. I have waited for several (6) months now to try and re-start my reef. I transfered my 250 lbs of lr and fish to the new tank. I used new sand.

I still cannot get corals to stay alive - except for some green star polyps and bubble anemones which have re-grown.

I am running a 90 gal w/25 long sump. Sump has a fuge, and a recirc chamber with a Octopus skimmer, phosban reactor, and a UV light.

Numbers today:

Ph - 8.2
Kh - 1500
Amonia - 0
Po - .25
Ca - 600
No2 - 0
No3 - 0
SG - 1.024
78.9 degrees

I do 20 gallons water change every other week. Feed every other day.

Orange & Black Clowns
BLue Tang
Yellow Tang
Flame Angel
Royal Gramma

Cleanup crew


I also checked for any voltage leaking into the water - found none.


Any thoughts?
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Old 02-14-2010, 07:56 PM   #2
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Calcium is pretty high. It needs to be around 400-450. Are you adding a calcium supplement.
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Old 02-14-2010, 08:07 PM   #3
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Could it be a lighting deficency? What type of lighting do you have? The green star polyps dont "require" High levels of lighting and you say it is doing ok. Most bubbles do, what kind do you have?
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Old 02-14-2010, 09:10 PM   #4
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I have been putting in purple up, 2 caps every other day, for a month now. I put it in about 8 hours prior to testing. I usually use reef crystals and do not use purple up. I lost most of the coraline in July and couldn't get it to grow back. I bought a LR with it covered and having success seeding the rerst of the rock with it and some PU.

I am running 2 x 150 mh (8 hours per day) and 4 x 50 T5s (12 hours per day)
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Old 02-14-2010, 09:46 PM   #5
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Ok, The first thing you need to do is stop the Purple up. Your calcium is way to high. You need to realize that not just calcium is in the equation for coralline. Alk and magnesium are players also. Just rely on PWC`s to take care of your calcium needs.
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Old 02-14-2010, 11:46 PM   #6
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OK - will do

I don't usually use purple up. I haven't used it for a long time. Just recently for a few weeks now.


That said, this problem has been going on far longer than my use of purple up.
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Old 02-15-2010, 02:39 AM   #7
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What corals have died, and how did they die?

The other issue with PurpleUp is that it has iodine in it, which if overdosed can kill off corals. Doesn't sound like you think that's the issue, but I'd be doing some water changes to get those levels back down to normal in your system. Also... what is the alkalinity? 1500 what? That's not really a normal number for any of the units normally used for alkalinity.
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Old 02-15-2010, 05:06 PM   #8
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Did a pwc this morning


Ca 500

Ak 2


Corals that have not made it:

Frogspawn - slowly recinded into their exo over a 3-4 week period
Montipora cap - bleached out over a few weeks
Pink bird's nest - bleached out over a few weeks
Hammer - slowly recinded into their exo over a 3-4 week period

All corals were drip acclimated for 3-4 hours

My blue-legged crabs also killed all of my turbos and took over their shells
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Old 02-16-2010, 01:04 AM   #9
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Hmm. If you were dosing the PurpleUp when all this happened, that'd by the prime suspect. But you say the corals died before the PurpleUp, so that must not be the issue. Regardless, calcium of 500 and alkalinity of 2 (meq/l ??) points to some imbalances in your water so I'd get those cleared up before adding anything else. Here's a good article:

http://www.advancedaquarist.com/issues/nov2002/chem.htm

The phosphates at 0.25 ppm is really really high. Especially if you're running a Phosban reactor. Have you traced where that's coming in at? Tap water? I wouldn't expect it to kill off a coral that quick, but it's definitely a problem.

With the Monti and Bird's Nest, it could've been that your lighting was higher than what they were used to? Just talking out loud... Coulda been bad luck with the frogspawn and hammer. Or it could've been the long acclimation time... 3-4 hours is really long, in my opinion. (I usually shoot for 30 minutes, 1 hour max) Did you keep the water temperature stable during that time period?

Nothing really jumps out at me though...
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Old 02-16-2010, 05:55 PM   #10
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Thanks for the link. I will read that tonight.

My LFS told me that I needed to change my phosban reactor medium and make sure it is lot leaching back into the sump. They also recommended I try a grounding rod.
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