In breaking pond news, we found Drake, one of our two surviving 2006 goldfish, injured in the pond. Looks like someone (possibly Nelson, the other 2006 survivor) had a go at him, tearing off some scales and basically ripping off the top half of his tail. He wasn't standing such a good chance against infection or predators (including Nelson), so we've moved him into our fishtank to give him a chance to recover (the Bala sharks and Pleco shouldn't be much of a threat to him). We've added a bit of aquarium antibiotics to the water, and hopefully he'll pull through.