Monitora Setosa turning black

[Dave Reef]

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.

 

[shakacuz]

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

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

 

[Dave Reef]

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

 

[Dave Reef]

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

 

[JGT]

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

 

[shakacuz]

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

seems like a blue/purple pocillopora

 

[JGT]

Yeah think you are right. Thought it was a blurry pic of a torch.

 

[Dave Reef]

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]

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]

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

 

[Dave Reef]

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]

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.