Lobo Coral pooped and now its turning white?

[Jammerwocky]

So I've had this lobo for about 3 months. It's been pink and fleshy, looking healthy. I have a lot of corals and have seen about all of them poop, except this lobo.

About 4 nights ago, all of a sudden we saw these brown poop like pieces coming out of the right side of the lobo. At first we thought they were tentacles of some sort bc we had never watched it poop before.

Ever since then, the right section is totally bleached looking compared to the left section of it.

Any thoughts as to what might be happening here?

 

[Woodyman]

Sounds like that 'poop' may have been the lobo expelling zooxanthellae, which lead to the bleaching you see now.

How much lighting and flow do you have on the lobo?