Apologies for the blue lights - it was at the end of the day. Pictures also have a lot of noise - I had just finished feeding all the corals when I took out the camera. Just getting started with taking photos of my tank, and its really challenging so far. I have a Canon Rebel T6 and I was using the 18-55mm lens - but I'm hoping to get my hands on a macro lens soon.
One of the 2 diamond watchman gobies that we have in the tank... So far they have each claimed territory on opposite sides of the tank and don't bother each other.