Fish Recommendations

[NDReefer]

Hi Everyone,

I am looking to get some more fish. Let me tell you what I have right now.

Current Livestock
- Yellow Tang(1)
- Coral Beauty Angel(1)
- Blue-green Cromis(1), Had 3 but 2 of them vanished.
- Ocellaris Clownfish(1)
- Fire Shrimp(1)
- Peppermint Shrimp(1)
- Sand sifting starfish(1)
- Assorted snails and crabs

Tank
- 240 Gallon display
- 45 Gallon Refugium
- 80 Gallon Sump

I was thinking of getting some more chromis, but am kind of worried they will disappear on me again. Thought about some yellow-tail damsels, but I know damsels are kind of aggressive, and heard they can be a problem later. Was also thinking of getting a couple Pajama Cardinalfish. My tank is only 3 months old so I don't want to put too many fish in at one time nor do I want to put in any real expensive fish. All my parameters look good and the fish I do have are really healthy. What would you recommend? What kind of fish should I add?

Thanks,

Jason