Challenge: Fish bubbles
Make the fish swim and its bubbles more realistic.

Less bubbles!

Hint

draw = function() {
if () {
bubbles.addParticle();
;
};

This program draws a fish and bubbles coming out of its mouth, using a particle system for the bubbles.
But, it's adding a new bubble in every frame, and that seems like a lot of bubbles to come out of one fish.
Can you change it so that it only adds bubble every few frames, using the frame-Count variable?