I am trying to draw random fishes in this aquarium but I am only seeing one fish why ? Please if one can help me out !
Here is the code :

void setup () {
  size (900,600);
  background (0) ;
  // aquarium body
  stroke (0);
  fill (255,102); // using alpha transparency
  rectMode (CENTER);
  rect (450,320,800,500);
  //
  for (int i=1; i<=30; i++) ; {
    drawFish (int (random (450,370)), int (random (320,400)), int (random (20,65)), int (random (30,60)), int (random (0,2)), int (random (0,255)), int (random (0,255)), int (random (0,255)));
    }
}


void drawFish (int x, int y, int w, int h, int d, int c1, int c2, int c3) {
 
 //body
 fill (c1,c2,c3) ;
 ellipse (x,y,w,h);
 
 //direction - odd left, even right
 if (d%2==0) {
  
 // tail
 fill (c1,c2,c3);
 triangle (x-(w/2),y,x-w,y+(h/2),x-w,y-(h/2));
 //outer eye
 fill (255);
 ellipse(x+(w/4),y-(h/4),8,8);
 //inner eye
 fill (0);
 ellipse (x+(w/4),y-(h/4),4,4) ; }
 
 else {
  
 //tail oppposite side
  fill (c1,c2,c3);
 triangle (x+(w/2),y,x+w,y-(h/2),x+w,y+(h/2));
 //outer eye opposite side
 fill (255);
 ellipse (x-(w/4),y-(h/4),8,8);
 //inner eye
 fill (0);
 ellipse (x-(w/4), y-(h/4),4,4);
 
 }
 
}