Browsing through that link poikilotherm gave me and doing a google image search on some others I think he may be Awaous melanocephalus or Awaous flavus. I'm leaning towards A. flavus though because they look more striped and the A. melanocephalus is more splotched but they both look pretty similar to the goby in question. I haven't bought him yet, maybe tomorrow, I wanted to check on what kind of water conditions he needed before buying him. I've currently got about 40 zebra danio fry in the 20 galloon he'll probably end up in, think he'll eat them? They're currently about 16 days old and about a quarter of an inch, maybe larger.
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