Diamond Goby and Cyclop-Eeze

I am getting a diamond goby tomorrow at the LFS, and I know their diets usually need to be supplemented. Will they eat cyclop-eeze and if I add it will my larger fish like a coral beauty and yellow tang eat it?

 

My Diamond Goby gets all it needs from the sand and from what I feed regularly (brine, mysis, etc).

 

When I first got mine I had to spot feed him because he didn't want to come out. Now he is out all the time and eats everything and anything I put in the tank. Plus whatever he gets out of the sand!

 

I converted everyone in my tank to Rod's, with supplemental nori, and no one has died yet! My diamond comes out of the sand for the Rod's, and he's about 1/2" bigger since May. It's a really cool fish to watch.

 

I love Rods!!!

 

I actually went a different way and got two white sleeper gobys. When I introduced them my coral beauty immediately started chasing them around the tank. Are they just trying to figure out whos territory is whos? Also, I know sleepers like to be in groups. Could I add a yellow headed sleeper or a tiger sleeper and be okay? Also, will they dig a burrow together or separately?