Glad they are doing good for you. The blue chromis are awesome and when you are diving on certain wrecks here in palm beach there are schools of 1000's of them. Very cool sight to see in the wild. My friend has a couple in his tank and once they started eating they never stopped! These are seen swimming freely throughout the reef not ducking in and out of coral heads like the green ones in nature (at least my observation). Good luck with them and the first 2 weeks is the toughest, feed little bits throughout the day while your home.