Robot Electric Fish
You can buy this item at Banggood.com for only $3.70. I bought this product myself because we wanted to give our cats some funny toys. We bought four in total and every fish works well. The Pet Fish swims smoothly by using his tail, and will start to swim when you put it into the water. It changes direction for crossing obstacles and it has the ability to rise or sink. There are four different Colors: Green, Pink, Blue and Orange. The downside of the fish is his tail, through twisting or pulling on the tail the fish will sink. Look the video below to see the cats catching the robot electric fish.