What is this goby?

[captainemo]

I bought a goby at my LFS. It was about 1" long, black with yellow vertical stripes. It looks almost like an eel. It was supposed to be fully grown, but now it is at least 3.5" long or longer. It eats anything and burrows in the sand under the rocks. I can't really get a good picture of him as he shoots out quickly and then back in the sand.
Any thoughts on what it is and willit get bigger?

 

[captainemo]

I have been googling. It is probably a convict blenny.

 

[dogstar]

There are thousands of goby species, however, one like described, IDK....the convict juvi ( not a Goby, BTW ) has a horizonal stripe and as it gets bigger ( up to 12 inches ) it developes a more vertical patteren.

 

[sylvia5]

from the way you described it i think it may be a yellow neon goby, but its a little big for a neon goby