Need suggestions on good sand sifter gobie

[fishfreek]

I need a good sand sifter for my 45g reef. My 2-3" deep sand bed is looking pretty rough. Its covered in spots with green hair algae, i think it jst needs to be turned over by somthing like a gobie. Any suggestions?

 

[novice150]

I've got 2 diamond gobys in my tank, they're white with orange spots, and really cool. Excellent workers too I might add, they spend the whole day scooping up mouthfulls of sand and cleaning it. They do like to build homes under my live rock though, and they tend to put sand where ever they want.