@end mold/fungus growing from my cats Purina food

I forgot I threw away an old bowl of my cat's food in a little trash can in our garage a couple months ago and this is what it looked like at the end of the vidno. It looked alive. Also, both of my cats have been acting a little weird.
One of our cats is A stray that we let live in our garage and he is really sick. An our indoor cat husband getting sick.