Sleeper Golden Head Goby....pairs?

[shmibly]

I purchased one of these fish and I love him so, but I read they like to be kept in pairs? Yet I've read they are aggressive toward their own kind. Anybody have any experience with them?
If I could get two and house them in my 55 I would love that.

 

[h2o]

I just got a real pair of those and love how they swim next to each other like they holding hands