It do believe it is a Hi-fin Goby but he dont have the tall fin other than that he looks identical. I assume he might not have one because he is to young as he is really small. I got the rock some from the lfs and some from a tank taredown. The rock he came out of I got from a tank tare down but that guy said he never had one of those his tank was up for a few months. The lfs dont have any fish in there liverock tank its just jammed packed with rock. Last week I took all the rocks out to get a couple clowns out of my tank and I didnt see him but he was probably in his rock. So I have no idea where he came from. Someone had a goby in there tank lol.
