I appreciate the clarification. I will always try to keep the animals #1. As for the yellow ones. P. ciliata addapt their coloring to their surroundings. Since I collect in Kaneohe Bay they tend to be the same color and the one I sent you. I have never seen a yellow one. I have, however, sent one just like yours and in it's new tank became almost all green with white tips in about 3 molts. Basically, your tank set-up dictates their color. It would be interesting to see how we could manipulate their surroundings to get a certain color morph???