Good setup for clown goby?

[Honem]

Is this a good setup for a clown goby? I heard they liked to perch on stuff, but I couldn't find many branching rocks for it. Is this enough, or should I add more regular base rock? 5.5 gallon with ~8lbs of rock. I'm used to heavily planted freshwater tanks, so this looks incredibly empty and sad to me.

 

[Anabantiformes]

Dont have expirence with salt but ive had many gobies over the years and imo it looks perfectly suitable