I am no specialist on fish (or any other wildlife for that matter) so, if I have got this wrong, please feel free to correct me in the comments. I was down at Juanita Bay seeing what wildlife was out an about. I was on one of the boardwalks and looking in to the water to see if there was anything in there. I saw a black mass seeming to pulse and move. I was confused as to what it might be but the long lens gave me a clearer view of things. It was a massive amount of baby fish.
My previous disclaimer comes in to effect here. I think they were catfish based on the shape of the mouth and the barbs but that could be totally wrong. Let’s assume for now that they were. There was hundreds of them, if not thousands. They were moving around furiously but staying closely packed together for safety. The group would gradually move around and migrate through the plant life. Occasionally, a group would split off into a second section and then later they would somehow find each other again and regroup. They looked almost alien as they swirled and moved. I did take stills, as you can clearly see, but video seemed like the better way to convey the impression that they left.