Sometimes my cat walks on top of the aquarium before he decides to go swimming with the sleeping fish.?
Yes its a cat fish
I had a dog knocking my metal trash can over. Weekly. I got a bigger dog. Problem solved..
Make sure sure that there is a cover over the top so that the cat can't get in the tank.
Actually this question has been asked seriously in the past and is a concern for aquarium owners. Cats treated with flea products can harm fish tanks.
That isn't a question and has nothing to do with astronomy.
What a clever kitty you have.