So I have my nem in a little box at the top of the tank so it cannot escape and I was able to put my clownfish in there so I could get him to go in it and when I caught the clownfish and put him in it looks like he was getting stung and we was like floating around in there so I took him out and let him back in the tank and he’s all pale in color and has like white stringy stuff coming off of him anyone know why the nem was stinging him?