[quote=”helene” post=1998]as I mentioned yesterday I have a culture of paramecium – aquired for the purpose of feeding fry. This looks excatly the same as these, so I am not in doubt that it is a similar thing.[/quote]
Yes, I think you are right. This morning there were still smaller clouds left. I imbibed some with a syringe and put it into the tank with the nagyi-pair – just to “vaccinate” the tank.