Goby ID

[Graham Ramsay]

A local store has a couple of interesting fish
in just now but were unable to provide a name.
About the size and shape of a khuli loach but
clearly a Goby.
Both have similar colouration being dark brown
with a cream stripe from head to tail.
On one fish the cream is replaced by a brilliant
emerald green towards the head.
Any ideas?

--
Graham Ramsay
Blairgowrie (UK)