What should I add next?

[2goby]

I have a yellow watchman goby, bared goby, atlantic starfish, and a cleaner shrimp in my tank so far. I am trying to create a hardy enviorment, so what fish should I add next? <img src="graemlins//confused.gif" border="0" alt="[confused]" />

 

[mr . salty]

How big and old is your tank?? What do you have for substrate??Any live rock??What kind of filter??What are your water readings??? All these questions must be answered before anyone can correctly answer your question...