Can someone tell me how to sterilize a tank after it has had a diseased fish in it? Please?............

Hi Kathy! You can use hot water and white vinegar,or evena bleach solution along with hot water...Just remember to thoroughly rinse ,and then rinse 10 times more!!!

Thanks, Sharon!

Is there another way that anyone knows of? I'd be scared to death to use even the smallest bit of bleach.