Have you guys seen the clip of the person that built a 3D viewing platform in the bottom of their fishtank for the cat?
YES!!!
I wondered if that would lead to frustration like laser points do for dogs.
Cat looked like he was having a good time, indoor kitties in particular are used to seeing things on the other side of glass that they can't catch
Oh, that's a good point about indoor kitties. When it comes to pets, my username does NOT check out (super allergic) so my cat knowledge comes from internet memes.