Acan having stringy material coming out

[Bonsai reef]

Hi,

I just got a new Acan on Saturday. Today evening i see some reddish stringy thing coming out of its mouth from couple of heads. I target fed it on Sunday with reef roids. Its in med/low flow and in a corner (less light) i moved it once from front-middle to front corner. Any idea what it could be?

Water params-
Salinity-1.026
Nitrate and phosphate- undetectable
NH3, NO2- 0
Calcium-500
Alk-8
pH-8
Temp-78

Pic below (not clear enough to show the strings but this is now it looks)

 

[Shep]

Looks healthy and happy to me!

 

[Abeal17]

I does look healthy and happy, I think it's regurgitating the leftovers of the reef roids IMO.

 

[ahiggins]

Red stringy coming out of mouth=poop lol
It’s the white spaghetti stuff you should worry about, that’s the intestines of it.
They look happy to me