Identify this fish
 

Hi have this fish I just bought but think it was not what they thought it was.https://uploads.tapatalk-cdn.com/201...7b9ce25513.jpg

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Definitely a Goby. Almost looks like a pale watchmen goby.

Yes, it's a Watchman Goby.

Yellow watch man go by get a pistol Shrimp to work together pair them up

From the picture, I think the fish appears to be a watchmen goby. It could be a yellow watchman goby before turning pale. They usually live inside of small burrows below with pistol shrimps.