I believe one of my fish is dying. It lays on its side for a while then it's up swimming about again. I have placed it into a trap and it will lay on the bottom most of the time but if I go near the tank he will get up and move around. I have put some food in but he is not interested. If I put him back into the tank he will be attacked and killed as my fish are like that! I'm unsure if he will get any better or if he will die soon..... so my question is would you remove him and put him out of his misery? Or let nature take its course in the trap?