What kind of Loach?

[Ajxackt]

I have been curious about this fish for some time. I have figured it to be aome sort of loach by looks alone, can you guys identify it?

 

[Pomatomus]

Looks to be a swamp darter. They frequently come in with shipments of live ghost shrimp. Not a loach but it's in the same order.

 

[Ajxackt]

I googled that to look at some pictures and yeah, they look exactly like that! They are in the same tank that the ghosts usually go in.
Thanks!

 

[Fat Homer]

Looks like some kind of goby to me???