Recently we have been hearing occasional loud splashes coming from the pond and when we look out we can see the disturbance but we didn't know the cause. We had assumed it was the bull frog attacking something. Today while outside looking at the pond I saw Gary, our 10lb or so koi, suddenly charge the surface where some mosquito fish were gathered and he jumped, creating a large splash as he broke water. AhHa! Now I know the true cause of the splashes we had been hearing. We knew that Gary ate mosquito fish but his past tactic was to sneak upon them and suddenly start sucking in water. Apparently Gary has learned a new tactic....