Monitora Setosa turning black

Dave Reef

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What is with my Montipora? My parameters are:
Nitrates = 8ppm
Phosphate = 0.03 ppm
Kh = 9.3
Calcium = 480
MG = 1320

All these parameters have been very stable.

IMG_2592.jpeg IMG_2591.jpeg
 

shakacuz

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any recent changes? feedings, fish, invert, lighting, flow, etc

could send out an ICP to see if there are any deficiencies in trace elements.
 
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Dave Reef

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Nothing really changed in months. I stopped using filter socks a couple months ago but can not see the change in any of my water parameters
 
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Dave Reef

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I have about 280 par at that location.
Ecotech AB+ light setting I think it’s called
 

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Is that a torch at the bottom of the second pic? Could be sending out sweeper tentacles and stinging the monti.
 
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Dave Reef

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That is an out of focus stylophora. Not really close either. It is about 3" lower and to one side of it in my rockwork. That is a small rainbow bulb tip anemone that is nearer to it. It wandered up there and hasn't moved for a while.
 

shakacuz

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That is an out of focus stylophora.
ahhhh, i always get the two mixed up, haha.
That is a small rainbow bulb tip anemone that is nearer to it. It wandered up there and hasn't moved for a while.
the BTA could've potentially stung the setosa causing it to die back(turn black)
 

steveschuerger

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Get it in lower par. They don’t like to be baked. Try closer to 150-175. I had one in par that high and found out after it started dying they like less par than most sps
 
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Dave Reef

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If it’s too much light wouldn’t it turn black on the best lit parts? The part that’s turning black is a little on the underside
 

shakacuz

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If it’s too much light wouldn’t it turn black on the best lit parts? The part that’s turning black is a little on the underside
i agree

send out an ICP and make sure your trace elements are good. i don't believe it was the lights; could be the BTA that stung it or lack of trace elements.
 

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