Suggestions on what's going on with my new Violet Goby?

noljuskin

So I picked up this guy today but he's unlike any violet goby I've had. He's gray and has green spots. Does anyone think that maybe it's algae or is it possibly a skin condition that he picked up from his previous owners? I'm a little concerned. My gobies have always been a bright purple tint.

Help?

https://sphotos-b.xx.fbcdn.net/hphotos-ash4/484694_10151199366637373_1813695504_n.jpg"]https://sphotos-b.xx.fbcdn.net/hphotos-ash4/484694_10151199366637373_1813695504_n.jpg

Pufffreely

Violet Gobies will appear paler when stressed, Good water quality and a proper diet your goby will be fine. Keep in mind that Violet gobies prefer low end brackish water.