sick catty

[Blue spot]

I've had this coral for over a year now . moved it a couple of weeks ago as I had to change the tank around. at first I had it to high so i think it was getting to much light, i have now moved it to about the same hight as i used to have it. but i am getting this strange sort of grey substance collecting on the outer edges of the catty . any ideas anyone? it looks almost like intestine , sort of ribboned

any help would be great

 

[rt67ghy]

It's not a good sign. I'd do an iodine dip. I had a c. jardinei which had the same thing happen to it and it eventually died. I could never figure out the reason. I hope you can save yours.

 

[Blue spot]

Thanks rt, I'll keep trying