Hi Beebster
I got to level 6. The fish were going insanely fast. Some sort of mechanic to force the player forward may also be in order, as I could just line up my mouse and wait for a fish to pass. Their movements were predictable and I could take my time.
I liked it, only thing that was a slight issue is I hit right click by accident on level 4, which quits the game. Which I understand is probably for the mouse only challenge.