Smart rainbow

[Rusty_S]

I was watching my fish tank earlier, as I tend to do quite often. As I got closer to the tank the fish all congregated in the top right hand corner waiting for food like they always do. I put my finger on the glass and dragged it across the glass. The male rainbow fish followed my finger, back and forth, up and down. And I always thought my fish were dumb Turns out they're not all idiots lol