I currently have 2 yellowtail damselfish who get along well being temporarily kept in a 20g tank. I'm setting up a 65g soon and I'm considering what else I could add to it. I really like to keep multiple individuals of the same species when possible and I have a soft spot for small fish, so I was looking into fish that could be kept in groups in a tank this size that wouldn't be bullied by the yellowtails. I was reading on blue-green chromis, which apparently tolerate each other but can be quite territorial and agressive among themselves and to other fish depending on the circumstances too. Has anyone kept these two species together? Is there any way this pairing could work? Thanks in advance.