I leave here the necessary files to continue with this fish board game for children. (Solidworks 2015 & STLs).
For anyone who wants to continue. The fish are functional and tested (even their cavity in the water).
To complete the game it is necessary to add the motorization.
The basic idea was a DC motor with printed 3D pinion + internal gear on the base wall of the game - (movable part). All this is blown by a base in which the water rotates and has the wedges to raise the fish.
I can not find time to finish it for now