Blue Reef Chromis (Chromis cyaneus)

[Myka]

I am contemplating adding 3-5 Blue Reef Chromis to my reef. Not to be mistaken for the Green or Blue Green Chromis. I am under the impression that these Blue Chromis are more docile than the typical Green Chromis, and are a peaceful choice for a shoal. I have a couple small Gobies in my tank, so I need peaceful fish. What is the biggest you guys have seen them? Some sources say they get to 5", but I have never seen one over about 3 1/2" (not including tail fin). Any thoughts or suggestions?

I can't keep Anthias because I don't feed my tank often enough, and I already have plenty of yellow and pink in my tank.