![Blue Green Reef Chromis Blue Green Reef Chromis](https://aquanerd.com/wp-content/uploads/2010/06/Blue-Green-Reef-Chromis-300x199.jpg)
Blue Green Reef Chromis
This week’s AquaNerd Picture of the Week is of a Blue Green Reef Chromis (Chromis viridis). These fish are related to damselfish, but are a little more passive. However, they can develop a mean streak and your small school might dwindle down to a few individuals over time.