This is a vid' of my Goby Dragon hunting around for food. I have him in a 60 gallon brackish tank. I bought him 3 years ago at a WalMart (of all places) as a baby. He's now around 18". I have a few Mono's, a GSP and a Marbled Goby in there with him. Eventually I'll need a bigger tank (just found out the Marbled Goby gets huge). SO far no issue with the GSP nipping anyone. Sorry about the sound (Star Trek playing in the back ground!).
[ame=http://www.youtube.com/watch?v=aG0Pn5DURus]YouTube - Goby Dragon on the prowl[/ame]