I.D this fish for me please

[Aqua crew]

Someone came and dropped this guy off at the store I work at today. Some kind of Goby/Gudgeon. Freshwater, and not a clue at its proper name. Can anyone identify it for me?
Thanks.
Crew

 

[Aqua crew]

And don't mind those demasoni's fighting to the death behind him, they were separated right after this picture was taken.

 

[Goldfish loach boy]

I have no idea what that is, but a fish I certainly would buy! Nice fish

 

[Aqua crew]

As someone who regularly catches gudgeons in a lake behind my house, I can say I've never seen one like this before.

 

[PerfectDepth]

Eleotris vittata or E. picta?

 

[Aqua crew]

Eleotris vittata?

Awesome. Google images delivered the exact fish. Is there another name for it that it may be more commonly referred to as?
Thanks a bunch.

 

[PerfectDepth]

These are from the "sleeper goby" family, known as a water cow goby.

 

[Aqua crew]

Yeah I'm doing some research now and I'm seeing the name water cow come up quite a lot. Seeing eleotris picta a lot as well. But I'm thinking picta is the "spotted sleeper".