Stocking list

[scuglass]

Currently I have a 75 Gal 48x20(w)x18(h) with about a 30 gal sump

Fish wise I have:
Yellow tang
Yellow corise wrasse
Mandarin
Royal Gramma
Purple Firefish
2 false percs
Bicolor anthias

How many more fish can I add.

Suggestions on what to add.

*This is for a reef aquarium*

-Id like to maybe pick up a bicolor and fire angel (prolly have to add at the same time)

Or some smaller tang. (suggestions)

Thanks.