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Old 04-30-2014, 06:45 AM   #1
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Duncan dying-please help

My duncan was huge and healthy but close to another coral so I moved it. I have since noticed a section that has been bleaching and when I inspected the coral to make sure there were no nudibranches, the flesh was hanging out in strings and the underside shows the bleaching is spreading across the coral. Any ideas what would cause this and how to stop it further? I moved it as it had really grown quite large and now to see it dying is Click image for larger version

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Old 04-30-2014, 08:07 AM   #2
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You might have to frag it, cutting away the dead flesh completely in order to stop it. If it continues, it's your only hope.
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Old 04-30-2014, 08:08 AM   #3
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Thanks Doug. I thought the same....will check if my son has a diamond drill.
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Old 04-30-2014, 08:20 AM   #4
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My duncan was huge and healthy but close to another coral so I moved it. I have since noticed a section that has been bleaching and when I inspected the coral to make sure there were no nudibranches, the flesh was hanging out in strings and the underside shows the bleaching is spreading across the coral. Any ideas what would cause this and how to stop it further? I moved it as it had really grown quite large and now to see it dying is Attachment 235493Attachment 235494Attachment 235495Attachment 235496distressing.

I am going to google it again but based on the shape I am thinking that by flesh you mean to cut away the full sections bleached like cutting broccoli stalks...straight down...not actually cutting/shaving the sides which look bleached? The last time I tried to "saw" another Duncan -my first encounter with nudibranches...it didn't survive. Don't know if it was too late for the Duncan or my technique which killed it : (
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Old 04-30-2014, 08:39 AM   #5
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Yes, that's correct. Cut right through the skeleton and flesh, cutting away any dead tissue. Make sure you cut some live tissue away with the dead, otherwise you haven't arrested anything. I have used wire cutters to frag duncans before. If you don't have a dremel, that is.
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Old 04-30-2014, 08:57 AM   #6
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We have a hacksaw which is what we used last time. Is that OK?
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Old 04-30-2014, 09:00 AM   #7
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We have a hacksaw which is what we used last time. Is that OK?
That would be fine.
It is interesting that that spot isn't doing so well...I'd want to suspect some sort of damaged when you were moving it. I've been pretty rough with my duncan colonies and never had anything as severe happen to them, even when they fell over onto the hammer coral while I was at work. But this does remind me of when I accidentally damaged the skeleton around the head on my torch coral. It expelled and was gone rather quickly.
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Old 04-30-2014, 09:13 AM   #8
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That would be fine.
It is interesting that that spot isn't doing so well...I'd want to suspect some sort of damaged when you were moving it. I've been pretty rough with my duncan colonies and never had anything as severe happen to them, even when they fell over onto the hammer coral while I was at work. But this does remind me of when I accidentally damaged the skeleton around the head on my torch coral. It expelled and was gone rather quickly.

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ID:	235504 this was the Duncan earlier. We moved house 3wks ago and it was still great but the composition of the tank was different -it was my priority and a major panic to set it back up again...not necessarily the same with buckets, coral, sand, fish equipment etc everywhere!As it turned out I moved an elegance near it and they both spread out more than I could have imagined so maybe the damage is from the elegance stinging it?
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Old 04-30-2014, 09:15 AM   #9
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Maybe...I'd be more leaning towards damaged in the move, but either are possible. Duncan are the opposite of aggressive, so you might want to move it.
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Old 04-30-2014, 09:15 AM   #10
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This composition is at the new house but I moved the elegance where the green one is (can't remember name). The elegance sat much deeper into the rocks but just thrived and spanned out and I could see it touching the Duncan but it didn't recoil..
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