Fish ID

[Reef_kid]

engineer goby. they are really intresting fish.. however they dig a lot!!!
and will cause your rocks to collapse. i had one i thought had died . i had an undergravel filter.. he had dug under... 2 years later well after i thought it was dead i pulled the tank apart and found that it was hidding and had grown to over a foot long!!! they are really cool in small groups... they will share burrows and school