customizing map overlays in Xcode - ios

Question

I have a mapView with 2 circles. When I try to customize the large one the small one seems to follow the large one. For example if I customize the fill color for the large one the smaller one gets the same color. How do I make the smaller one a different color? Note: I use reusable identifiers. Thank you.. this is my working code but when i try to edit my smaller circle, the one with radius 100 it doesn't. note: this is my WORKING code as anything else i tried it failed.
- (MKOverlayView *)mapView:(MKMapView *)mapView viewForOverlay:(id<MKOverlay>)overlay {
static NSString *CircleOverlayIdentifier = #"Circle";
_mapView.delegate = self;
if ([overlay isKindOfClass:[CircleOverlay class]]) {
CircleOverlay *circleOverlay = (CircleOverlay *)overlay;
MKCircleView *annotationView =
(MKCircleView *)[mapView dequeueReusableAnnotationViewWithIdentifier:CircleOverlayIdentifier];
if (!annotationView) {
MKCircle *circle = [MKCircle
circleWithCenterCoordinate:circleOverlay.coordinate
radius:circleOverlay.radius];
annotationView = [[MKCircleView alloc] initWithCircle:circle];
//this one
}
if (overlay == self.targetOverlay) {
//adjustable
annotationView.fillColor = [UIColor colorWithRed:1.0f green:0.0f blue:0.0f alpha:0.3f];
annotationView.strokeColor = [UIColor redColor];
annotationView.lineWidth = 1.0f;
} else {
//fixed
annotationView.fillColor = [UIColor colorWithWhite:0.3f alpha:0.3f];
annotationView.strokeColor = [UIColor purpleColor];
annotationView.lineWidth = 2.0f;
}
return annotationView;
}
return nil;
}
- (void)configureOverlay {
if (self.location) {
[self.mapView removeAnnotations:[self.mapView annotations]];
[self.mapView removeOverlays:[self.mapView overlays]];
CircleOverlay *overlaysmall = [[CircleOverlay alloc] initWithCoordinate:self.location.coordinate radius:100];
[self.mapView addOverlay:overlaysmall];
_targetOverlaySmall = overlaysmall;
CircleOverlay *overlay = [[CircleOverlay alloc] initWithCoordinate:self.location.coordinate radius:self.radius];
[self.mapView addOverlay:overlay];
GeoQueryAnnotation *annotation = [[GeoQueryAnnotation alloc] initWithCoordinate:self.location.coordinate radius:self.radius];
[self.mapView addAnnotation:annotation];
[self updateLocations];
}
}