I did it I actually hav a blue damsel and cichlids living together! I started to add a little bit of marine salt to my aquarium with my smaller cichlids everyday for the past 2 months and once the salinity level reached 1.016 i decided to add a damsel 3 weeks ago and it is still doing fine and what amazes me is that now I have two red devils, a jack dempsey, and a texes living with a blue damsel! They seem to be thriving and they all have healthy appetites. tell me what you think...