Who has a Yellow Watchman Goby?

[NHRA]

We have two yellow watchman gobys in our 125gl and have had no problems with them. As for your questions.
Yes, they are sand sifters
No, they don't seem to pile the sand up
No body has jumped yet let alone leave the bottom 3" of the tank
No social issues with our other fish,hippo tang, yellow tang, two clowns, scooter blenny, 4 chromis, flame angel, potters angel, royal gramma and some other kind of goby (can't remember)
We have between 1" and 2" of sand bed and they seem to like there burrows under the live rock.
Don't know about the shrimp.