Very nice looking game and a cool idea for fish implementation!
The only problem I had is that i was punished for chosing the 'wrong' direction and being stuck for my 'mistake'.
I feel like being punished for going the direction that it is likely that the ball will break is understandable as I could see that that might be too high.
But being punished by chosing the route with dead end? Not the best choice in my opionion.
Other than that very solid jam entry
Good job!