Octopus Frogspawn bleaching? or pooping?

Hello all,
I've had this "octopus" head for about three weeks in my 20 nano reef and it seems to be doing good (fully expanding and eating everyday) but I've noticed it dispels a long ribbon of mucus-like brown stuff about every other day. Is it bleaching or is it pooping? Should I move it to the bottom of the tank? I really want to make it happy as fast as I can so I don't end up killing it *facepalm*
thanks!
p.s. levels are
78 degrees
pH 8.2
sg 1.024
dkh 10
no bad levels of trites or trates
(lighting should be in signature)

 

octopus head? gonna have to show us a picture or link to a similiar picture somewhere. can be a number of things.

 

http://www.3reef.com/forums/members/lfc4life-albums-tanks-picture8679-dscn0923.jpg


sorry - haha probably should have put a recent picture with it

 

Frogspawn (Euphyllia).

If it's maintaining it's coloration than probably just expelling waste. If it's fully inflating it's most likely good.

Can not comment on the light though.

 

I thought maybe it was expelling its excess zooxanthellae - not sure - as though it seems happy and is always fully inflated - just don't want to be doing it harm.