We already have the 2 wrasses and they get along. We got the chromis yesterday and he has been hiding a little, swimming around a little and did eat. The Kole Tang chased him once, but is losing interest.
Did you only get ONE Chromis ???
Chromis are a social species, never found singularly in the wild and in captivity, they do better in small groups. IMO you should add at least two more......