Water Cow?

[Billy Bob]

Looks like one of the larger gobies. Try "sleeper gobies" or "jade gobies".

 

[Lila]

I have seen them. In fact, my lfs has one right now. He had two, then sold one. They are pretty neat. I don't know much about them though.

 

[Dragon_Lord_Tia]

that looks a sleepy cod a native to australia heres a web site on them

www.nativefish.asn.au/sleepcod.html

looks like it to me but never seen them under that name