I was wondering when the best time to put damsels in a tank. I am just getting a 75 gallon set up and was wondering do I need to wait til most of the fish I want are already in. I know if you put them in first they can cause trouble. The ones I want are yellow tail damsels. I will have some clownfish, blennys, flame angel, and some others. I'm not sure if they are able to live together.