That's not very yellow looking.

Since it seems that you have quite a number of them,
then they are eating something substantial. They
could be a type of soft coral eater. Look to see
what coral they most likely look like, and then
check that coral to see if they or their eggs are
underneath or on or near.

Wayne Sallee
Wayne's Pets


StringerBell wrote on 2/15/2007 5:41 AM:
Oops, wrong URL,

please check Yellow Nusibranch pic he

http://www.aquariumadvice.com/viewto...=785996#785996