Stonogobiops are fairly easy species to care for, though my luck with them so far has been lacking. Up until 2 days ago I had a Stonogobiops Nematodes (Hi-Fin Banded Goby) and the Alpheus Randalli, and they're a great combination. No special care is needed... they eat pretty much whatever you put in the tank. Unfortunately, something scared the nematodes into the overflow, where it was pulled into my Mag5 CLS that draws from within the overflow box... so, yesterday we went and picked up a Stonogobiops Yasha, and are hoping that it will fill in where the nematodes left off.
We also had another Yasha Haze in the past, but lost track of it when we upgraded our tank from a 55g to a 120g... we also had another Stonogobiops nematodes a few months back, and it also decided to take the swim through the Mag5 (though on the old tank... it was the return pump from the sump then).
Let's hope I have better luck this time.
From my experience, though, the Yasha tends to be a bit more skittish than the nematodes, and takes longer to get used to new environments.
HTH.