Yellow Watchman Goby

[Matt]

We got a yellow watchman goby a while ago. Cute thing, bright yellow with blue "freckles". It disappeared shortly after introduction, and was only occassionally seen, always near the back, behind, under or inside rockwork. We did notice that it was fading. now it has decided to take up residence front and centre on the sand, building sand castles. Very adorable, but he is now gray everywhere he used to be yellow, and has developed dark horizontal bands.

Eats well, seems healthy. Anyone have experience with these things? Is it permanent colour loss? Tips?

Bah... TPIWWP...

Matthew