Interesting. When I checked on the pond yesterday morning, most of the water hycienth (sp?) was out of the plant rings. There were 2 koi and 3 goldfish in the plant rings and 2 goldfish in the skimmer box. I thought a racoon or something had been in the pond. This morning, there are white foamy looking bubbles around the lilly pad leaves and in the waterfall. I guess I should go out and check for eggs.