Boris Landoni from Open Electronics documented his Robofish build:
We introduce you a robot fish that is able to swim and recognize tank edges and obstacles. We’ll find out how we can easily create it with common insulating material and a few servo motor controlled by Arduino.
We are also interested in making such project,can you please give more information of the body material of the fish.
i was very interested to make such project, can u give me more information about material of the body, motor that can controlled by arduino