I am barely able to take acceptable pictures of the family so I am starting from zero knowledge of this subject. Luckily, there are a lot of fish photographers willing to share their knowledge. Here is one of them.
It seems easy until you try to do it. Especially with my “Point and Shoot” camera but I
don’t think poor tools is the only reason. Amazingly, my daughter takes much better pictures of the fish with her cell phone than I can with the camera. She is simply better at it.
Since the light is low and I can’t use the built in flash due to the reflection from the glass, slow fish such as angel fish are easier. To do fast moving fish, I would need a lot of light or a detached flash that shoots at an angle so the reflection isn’t visible.
I have learned to pay attention to the things surrounding the fish that detract from the picture…. and even seemingly mundane things like cleaning the glass.