No more worrying about your cat eating up your fish in the fish tank while you're gone! Now you can set up a little fish tank just for them to play with! The robo fish toy comes with batteries included and automatically activates when placed in water. Just place a few robo fish in the bowl you set up for your kitty, and let the fun begin! Robo fish will swim around in the water when placed in, and your kitty will have a blast watching them go! To turn robo fish off, simply take it out of the water until the next game of "Go Fish"!