Brown jelly disease? Or could it be too much light?

[Wilfried]

So I am hoping that I did something stupid... Hear me out: Two of my Euphyllia type corals are showing very clear symptoms of Brown Jelly Disease. But I'm hoping that I am mistaking these signs for something else.

Recently I bumped up the UV light on my tank. I am lighting my 500ltrs with 5 AI Hydra26HD units, of which I increased the UV lighting by 60%. And I added some Orphek OR3 light that are very heavy on the UV. It's so pretty! All seemed well. A few weeks after that I moved two Euphyllia type coral higher in the tank on top of some rocks.

These are now showing signs that look so much like Brown Jelly. But I am hoping that I've just been roasting them. Any way I can tell? What does burnt LPS look like? Does it get a thick brown coating on top? The rest of my corals that I hadn't moved are looking very well.

 

[MERKEY]

It sounds like BJD but pics would be helpful.

 

[924er]

lighting isnt a direct cause but anything that could be causing stress can make it more likely to get bacterial illness. do you feed directly

 

[Pistondog]

Lighting or any change can stress which can lead to bjd.
If the coral is ejecting a dark brown mass (zooxanthelle), this may be a reaction to light or temperature increase.
If the brown mass is transparent and tentacles are dissolving, that is bjd.

 

[Atherial]

Brown jelly acts really fast. If it is brown jelly, then you can take the coral out of the tank and the part under the brown jelly will be destroyed.