I just bought a new kuhlI loach. Black & yellow. So I put him in the tank, and he seems all happy and healthy. Doing the loachie dance with my other kuhlis. Then one morning I get up and look for my loach. All the others are still out, swimmong around and eating. But for some reason, I can't seem to find the new one. I look evereywhere. No sign of the kuhli. Finally, two days later, I check in the filter, and there he was. Scratched up a bit, but still alive. Somehow he swam against the current of the outtake and stayed in the HOB filer for two and a half days! It has been twelve hours, and he is in my rock cave most of the time, but he seems to be staying upright and active. Its my first time having a kuhlI swim into the filter.