I've read a lot of sad stories like this one, but I think that overall ADF are considered to be pretty tough little buggers - especially considering how tiny they are! I'm SO glad that I've never had to deal with an illness with my babies... it's so difficult to know what meds are safe for them . . but one thing. . . I have to say that I am AMAZED at their ability to heal after injury/trauma/stress. When poor Specks got sucked into the filter, she was pale as a ghost, and not okay at all, but after a couple of days in peace and quiet, she was nearly 100% back to normal. She still has a tear in her back flipper between two of her 'toes' that probably will always be with her, but it doesn't bother her in the least, and she's active and happy. I was so sure she was a goner, but she bounced back in record time. . .