Chalice help needed

[brewman1987]

Hi everyone so my chalice frag has recently started to go downhill. About a month ago I switched from t5ho to LEDs and started low at 30%. I currently am at 45% blue and 35 white. I first noticed the outer edge of the chalice started to become white and show some skeleton. Now it currently has these black spots in the middle, almost like craters along with some light green coloration. I have 2 photos showing the before on sept 15 this year and now from today. I did a lugols dip for 15 minutes today in hopes to revive it. I do run gfo/carbon in a reactor.

My water parameters are as follows.

Sg 1.026
Ph 8.3
Nitrate 0
Po4 .012
Ca 440
Mg 1350
Dkh 10

This is the only coral that has anything wrong with it.

Any help will be appreciated.

 

[brewman1987]

Photo of it now

 

[Tweaked]

I would put it under a rock for a while and observe. Basically only indirect lighting. Some chalices and favias absolutely don't do well in direct lighting.

 

[Reef Frog]

Sorry to say it looks to be on the way out. But it can't hurt to see if it can recover in a more shaded area with indirect light. In my experience, most chalices really are low light corals. I've managed to scorch them 10 -12 inches underwater under T5s. When they do well for me, it's usually because they're at the sides of the tank (where T5 strength is lowest), or mounted vertically in the bottom half. It's frustrating and many report them as "easy" to keep.

 

[Dkuhlmann]

I agree with under a rock or overhang, indirect light.. That said yes that one is a goner, BUT don't throw it out. Let it sit in the tank and see if it pops up baby buds after the skeleton is finished losing the flesh. Many corals have the ability to do this

 

[brewman1987]

Man that sucks..... I moved it under the overflow box on the far left side where it has very low light. There appeared to be one eye left. One can only hope, so do you guys think this is result of the change to led? And like a dummy it was dead center of the tank since the new lights, it really only seemed to decline very rapidly.

 

[Dkuhlmann]

Yes it is, they need to be started off very low percentages and slowly brought up over a week or twos time. They are burning your corals. You aren't the only one going through this. Sadly they don't come with instructions about the change.

 

[brewman1987]

So I checked on this coral tonight and noticed some improvements. Noticed several small feeder tentacles out and some light pink eyes starting to form. I seemed to of dip and move this at the right to time. Will post some updates and photos when I get them

 

[brewman1987]

Here is the updated photo I counted about 8 eyes or so. Looks like it's doing well in the dark area of the tank.

 

[m0nkie]

looking better. do you ever feed them? I feed all mine mysis and they grow very fat

 

[brewman1987]

I currently use coral gumbo and some photo feast usually once a week

 

[Tweaked]

Yep, low light helps