Hello I have looked online and also read through my Reef Aquarium Fishes book and can’t ID my fish. I purchased him at lfs and they incorrectly had him labeled as a yellow watchmen goby. Unless he is some type of subspecies I don’t believe this is correct. He is very active and friendly. Constantly swimming and only goes into rocks to sleep or hide. I included a video so you can see his swimming motion if that helps. He is a gold yellow color with blue eyes .